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Finding the Fourth Proportional to 96,710.60, 144,910.38 and 81,158.60

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Solution

The fourth proportional to 96,710.60, 144,910.38 and 81,158.60 is: 121,607.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,710.60 : 144,910.38 = 81,158.60 : x
  2. Step 2: Convert to fraction form
    96,710.60/144,910.38 = 81,158.60/x
  3. Step 3: Cross multiply
    96,710.60x = 144,910.38 × 81,158.60
  4. Step 4: Simplify right side
    96,710.60x = 11,760,723,566.27
  5. Step 5: Solve for x
    x = 11,760,723,566.27/96,710.60
  6. Step 6: Final answer
    x = 121,607.39

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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.