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Finding the Fourth Proportional to 109,644.12, 151,310.14 and 64,322.88

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Solution

The fourth proportional to 109,644.12, 151,310.14 and 64,322.88 is: 88,766.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,644.12 : 151,310.14 = 64,322.88 : x
  2. Step 2: Convert to fraction form
    109,644.12/151,310.14 = 64,322.88/x
  3. Step 3: Cross multiply
    109,644.12x = 151,310.14 × 64,322.88
  4. Step 4: Simplify right side
    109,644.12x = 9,732,703,978.00
  5. Step 5: Solve for x
    x = 9,732,703,978.00/109,644.12
  6. Step 6: Final answer
    x = 88,766.31

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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.