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Finding the Fourth Proportional to 88,393.15, 132,589.72 and 72,777.97

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Solution

The fourth proportional to 88,393.15, 132,589.72 and 72,777.97 is: 109,166.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,393.15 : 132,589.72 = 72,777.97 : x
  2. Step 2: Convert to fraction form
    88,393.15/132,589.72 = 72,777.97/x
  3. Step 3: Cross multiply
    88,393.15x = 132,589.72 × 72,777.97
  4. Step 4: Simplify right side
    88,393.15x = 9,649,610,664.47
  5. Step 5: Solve for x
    x = 9,649,610,664.47/88,393.15
  6. Step 6: Final answer
    x = 109,166.95

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1.5x scale

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.