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Finding the Fourth Proportional to 159,859.68, 220,606.38 and 88,239.72

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Solution

The fourth proportional to 159,859.68, 220,606.38 and 88,239.72 is: 121,770.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,859.68 : 220,606.38 = 88,239.72 : x
  2. Step 2: Convert to fraction form
    159,859.68/220,606.38 = 88,239.72/x
  3. Step 3: Cross multiply
    159,859.68x = 220,606.38 × 88,239.72
  4. Step 4: Simplify right side
    159,859.68x = 19,466,244,098.38
  5. Step 5: Solve for x
    x = 19,466,244,098.38/159,859.68
  6. Step 6: Final answer
    x = 121,770.82

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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.