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Finding the Fourth Proportional to 160,489.62, 221,472.96 and 88,868.10

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Solution

The fourth proportional to 160,489.62, 221,472.96 and 88,868.10 is: 122,636.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,489.62 : 221,472.96 = 88,868.10 : x
  2. Step 2: Convert to fraction form
    160,489.62/221,472.96 = 88,868.10/x
  3. Step 3: Cross multiply
    160,489.62x = 221,472.96 × 88,868.10
  4. Step 4: Simplify right side
    160,489.62x = 19,681,881,156.58
  5. Step 5: Solve for x
    x = 19,681,881,156.58/160,489.62
  6. Step 6: Final answer
    x = 122,636.47

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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.