Home / 138,313.50-207,470.43-38,473.70

Finding the Fourth Proportional to 138,313.50, 207,470.43 and 38,473.70

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Solution

The fourth proportional to 138,313.50, 207,470.43 and 38,473.70 is: 57,710.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,313.50 : 207,470.43 = 38,473.70 : x
  2. Step 2: Convert to fraction form
    138,313.50/207,470.43 = 38,473.70/x
  3. Step 3: Cross multiply
    138,313.50x = 207,470.43 × 38,473.70
  4. Step 4: Simplify right side
    138,313.50x = 7,982,155,082.69
  5. Step 5: Solve for x
    x = 7,982,155,082.69/138,313.50
  6. Step 6: Final answer
    x = 57,710.60

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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.