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Finding the Fourth Proportional to 88,393.65, 132,590.47 and 72,778.47

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Solution

The fourth proportional to 88,393.65, 132,590.47 and 72,778.47 is: 109,167.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,393.65 : 132,590.47 = 72,778.47 : x
  2. Step 2: Convert to fraction form
    88,393.65/132,590.47 = 72,778.47/x
  3. Step 3: Cross multiply
    88,393.65x = 132,590.47 × 72,778.47
  4. Step 4: Simplify right side
    88,393.65x = 9,649,730,880.23
  5. Step 5: Solve for x
    x = 9,649,730,880.23/88,393.65
  6. Step 6: Final answer
    x = 109,167.70

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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.