Home / 88,393.08-132,589.63-72,777.90

Finding the Fourth Proportional to 88,393.08, 132,589.63 and 72,777.90

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Solution

The fourth proportional to 88,393.08, 132,589.63 and 72,777.90 is: 109,166.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,393.08 : 132,589.63 = 72,777.90 : x
  2. Step 2: Convert to fraction form
    88,393.08/132,589.63 = 72,777.90/x
  3. Step 3: Cross multiply
    88,393.08x = 132,589.63 × 72,777.90
  4. Step 4: Simplify right side
    88,393.08x = 9,649,594,833.18
  5. Step 5: Solve for x
    x = 9,649,594,833.18/88,393.08
  6. Step 6: Final answer
    x = 109,166.86

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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.