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Finding the Fourth Proportional to 147,471.92, 203,447.20 and 93,728.16

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Solution

The fourth proportional to 147,471.92, 203,447.20 and 93,728.16 is: 129,304.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,471.92 : 203,447.20 = 93,728.16 : x
  2. Step 2: Convert to fraction form
    147,471.92/203,447.20 = 93,728.16/x
  3. Step 3: Cross multiply
    147,471.92x = 203,447.20 × 93,728.16
  4. Step 4: Simplify right side
    147,471.92x = 19,068,731,713.15
  5. Step 5: Solve for x
    x = 19,068,731,713.15/147,471.92
  6. Step 6: Final answer
    x = 129,304.15

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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.