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Finding the Fourth Proportional to 159,654.71, 220,312.21 and 88,033.20

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Solution

The fourth proportional to 159,654.71, 220,312.21 and 88,033.20 is: 121,479.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,654.71 : 220,312.21 = 88,033.20 : x
  2. Step 2: Convert to fraction form
    159,654.71/220,312.21 = 88,033.20/x
  3. Step 3: Cross multiply
    159,654.71x = 220,312.21 × 88,033.20
  4. Step 4: Simplify right side
    159,654.71x = 19,394,788,845.37
  5. Step 5: Solve for x
    x = 19,394,788,845.37/159,654.71
  6. Step 6: Final answer
    x = 121,479.59

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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.