Home / 138,010.32-207,015.48-89,073.36

Finding the Fourth Proportional to 138,010.32, 207,015.48 and 89,073.36

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Solution

The fourth proportional to 138,010.32, 207,015.48 and 89,073.36 is: 133,610.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,010.32 : 207,015.48 = 89,073.36 : x
  2. Step 2: Convert to fraction form
    138,010.32/207,015.48 = 89,073.36/x
  3. Step 3: Cross multiply
    138,010.32x = 207,015.48 × 89,073.36
  4. Step 4: Simplify right side
    138,010.32x = 18,439,564,375.61
  5. Step 5: Solve for x
    x = 18,439,564,375.61/138,010.32
  6. Step 6: Final answer
    x = 133,610.04

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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.