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Finding the Fourth Proportional to 160,098.88, 240,174.72 and 66,611.20

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Solution

The fourth proportional to 160,098.88, 240,174.72 and 66,611.20 is: 99,927.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,098.88 : 240,174.72 = 66,611.20 : x
  2. Step 2: Convert to fraction form
    160,098.88/240,174.72 = 66,611.20/x
  3. Step 3: Cross multiply
    160,098.88x = 240,174.72 × 66,611.20
  4. Step 4: Simplify right side
    160,098.88x = 15,998,326,308.86
  5. Step 5: Solve for x
    x = 15,998,326,308.86/160,098.88
  6. Step 6: Final answer
    x = 99,927.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.