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Finding the Fourth Proportional to 96,766.60, 144,858.30 and 85,102.60

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Solution

The fourth proportional to 96,766.60, 144,858.30 and 85,102.60 is: 127,397.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,766.60 : 144,858.30 = 85,102.60 : x
  2. Step 2: Convert to fraction form
    96,766.60/144,858.30 = 85,102.60/x
  3. Step 3: Cross multiply
    96,766.60x = 144,858.30 × 85,102.60
  4. Step 4: Simplify right side
    96,766.60x = 12,327,817,961.58
  5. Step 5: Solve for x
    x = 12,327,817,961.58/96,766.60
  6. Step 6: Final answer
    x = 127,397.45

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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.