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Finding the Fourth Proportional to 101,577.30, 152,365.95 and 66,147.90

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Solution

The fourth proportional to 101,577.30, 152,365.95 and 66,147.90 is: 99,221.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,577.30 : 152,365.95 = 66,147.90 : x
  2. Step 2: Convert to fraction form
    101,577.30/152,365.95 = 66,147.90/x
  3. Step 3: Cross multiply
    101,577.30x = 152,365.95 × 66,147.90
  4. Step 4: Simplify right side
    101,577.30x = 10,078,687,624.01
  5. Step 5: Solve for x
    x = 10,078,687,624.01/101,577.30
  6. Step 6: Final answer
    x = 99,221.85

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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.