Home / 135,969.24-187,636.32-75,540

Finding the Fourth Proportional to 135,969.24, 187,636.32 and 75,540

Calculator

Solution

The fourth proportional to 135,969.24, 187,636.32 and 75,540 is: 104,244.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,969.24 : 187,636.32 = 75,540 : x
  2. Step 2: Convert to fraction form
    135,969.24/187,636.32 = 75,540/x
  3. Step 3: Cross multiply
    135,969.24x = 187,636.32 × 75,540
  4. Step 4: Simplify right side
    135,969.24x = 14,174,047,612.80
  5. Step 5: Solve for x
    x = 14,174,047,612.80/135,969.24
  6. Step 6: Final answer
    x = 104,244.52

Related Problems

Find fourth proportional to 67,984.62, 93,818.16 and 37,770
Half scale
Find fourth proportional to 271,938.48, 375,272.64 and 151,080
Double scale
Find fourth proportional to 135,970.24, 187,637.70 and 75,541
Similar ratio
Find fourth proportional to 203,953.86, 281,454.48 and 113,310
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.