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Finding the Fourth Proportional to 159,881.20, 220,633 and 88,263.44

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Solution

The fourth proportional to 159,881.20, 220,633 and 88,263.44 is: 121,801.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,881.20 : 220,633 = 88,263.44 : x
  2. Step 2: Convert to fraction form
    159,881.20/220,633 = 88,263.44/x
  3. Step 3: Cross multiply
    159,881.20x = 220,633 × 88,263.44
  4. Step 4: Simplify right side
    159,881.20x = 19,473,827,557.52
  5. Step 5: Solve for x
    x = 19,473,827,557.52/159,881.20
  6. Step 6: Final answer
    x = 121,801.86

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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.