Home / 149,029.50-205,556.60-101,199.80

Finding the Fourth Proportional to 149,029.50, 205,556.60 and 101,199.80

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Solution

The fourth proportional to 149,029.50, 205,556.60 and 101,199.80 is: 139,585.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,029.50 : 205,556.60 = 101,199.80 : x
  2. Step 2: Convert to fraction form
    149,029.50/205,556.60 = 101,199.80/x
  3. Step 3: Cross multiply
    149,029.50x = 205,556.60 × 101,199.80
  4. Step 4: Simplify right side
    149,029.50x = 20,802,286,808.68
  5. Step 5: Solve for x
    x = 20,802,286,808.68/149,029.50
  6. Step 6: Final answer
    x = 139,585.03

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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.