Home / 138,129.60-207,142.32-44,610.24

Finding the Fourth Proportional to 138,129.60, 207,142.32 and 44,610.24

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Solution

The fourth proportional to 138,129.60, 207,142.32 and 44,610.24 is: 66,898.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,129.60 : 207,142.32 = 44,610.24 : x
  2. Step 2: Convert to fraction form
    138,129.60/207,142.32 = 44,610.24/x
  3. Step 3: Cross multiply
    138,129.60x = 207,142.32 × 44,610.24
  4. Step 4: Simplify right side
    138,129.60x = 9,240,668,609.36
  5. Step 5: Solve for x
    x = 9,240,668,609.36/138,129.60
  6. Step 6: Final answer
    x = 66,898.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.