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Finding the Fourth Proportional to 110,488.40, 165,635.40 and 66,132.80

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Solution

The fourth proportional to 110,488.40, 165,635.40 and 66,132.80 is: 99,141.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,488.40 : 165,635.40 = 66,132.80 : x
  2. Step 2: Convert to fraction form
    110,488.40/165,635.40 = 66,132.80/x
  3. Step 3: Cross multiply
    110,488.40x = 165,635.40 × 66,132.80
  4. Step 4: Simplify right side
    110,488.40x = 10,953,932,781.12
  5. Step 5: Solve for x
    x = 10,953,932,781.12/110,488.40
  6. Step 6: Final answer
    x = 99,141.02

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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.