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Finding the Fourth Proportional to 159,785.92, 220,502.80 and 88,168.96

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Solution

The fourth proportional to 159,785.92, 220,502.80 and 88,168.96 is: 121,672.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,785.92 : 220,502.80 = 88,168.96 : x
  2. Step 2: Convert to fraction form
    159,785.92/220,502.80 = 88,168.96/x
  3. Step 3: Cross multiply
    159,785.92x = 220,502.80 × 88,168.96
  4. Step 4: Simplify right side
    159,785.92x = 19,441,502,553.09
  5. Step 5: Solve for x
    x = 19,441,502,553.09/159,785.92
  6. Step 6: Final answer
    x = 121,672.19

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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.