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Finding the Fourth Proportional to 97,797.78, 135,020.52 and 91,766.52

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Solution

The fourth proportional to 97,797.78, 135,020.52 and 91,766.52 is: 126,693.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,797.78 : 135,020.52 = 91,766.52 : x
  2. Step 2: Convert to fraction form
    97,797.78/135,020.52 = 91,766.52/x
  3. Step 3: Cross multiply
    97,797.78x = 135,020.52 × 91,766.52
  4. Step 4: Simplify right side
    97,797.78x = 12,390,363,248.99
  5. Step 5: Solve for x
    x = 12,390,363,248.99/97,797.78
  6. Step 6: Final answer
    x = 126,693.71

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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.