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Finding the Fourth Proportional to 159,881.31, 220,636.92 and 88,261.92

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Solution

The fourth proportional to 159,881.31, 220,636.92 and 88,261.92 is: 121,801.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,881.31 : 220,636.92 = 88,261.92 : x
  2. Step 2: Convert to fraction form
    159,881.31/220,636.92 = 88,261.92/x
  3. Step 3: Cross multiply
    159,881.31x = 220,636.92 × 88,261.92
  4. Step 4: Simplify right side
    159,881.31x = 19,473,838,182.09
  5. Step 5: Solve for x
    x = 19,473,838,182.09/159,881.31
  6. Step 6: Final answer
    x = 121,801.84

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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.