Home / 195,977.76-270,428.60-115,400

Finding the Fourth Proportional to 195,977.76, 270,428.60 and 115,400

Calculator

Solution

The fourth proportional to 195,977.76, 270,428.60 and 115,400 is: 159,239.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,977.76 : 270,428.60 = 115,400 : x
  2. Step 2: Convert to fraction form
    195,977.76/270,428.60 = 115,400/x
  3. Step 3: Cross multiply
    195,977.76x = 270,428.60 × 115,400
  4. Step 4: Simplify right side
    195,977.76x = 31,207,460,440.00
  5. Step 5: Solve for x
    x = 31,207,460,440.00/195,977.76
  6. Step 6: Final answer
    x = 159,239.81

Related Problems

Find fourth proportional to 97,988.88, 135,214.30 and 57,700
Half scale
Find fourth proportional to 391,955.52, 540,857.20 and 230,800
Double scale
Find fourth proportional to 195,978.76, 270,429.98 and 115,401
Similar ratio
Find fourth proportional to 293,966.64, 405,642.90 and 173,100
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.