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Finding the Fourth Proportional to 88,157.60, 132,255.84 and 28,990.88

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Solution

The fourth proportional to 88,157.60, 132,255.84 and 28,990.88 is: 43,492.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,157.60 : 132,255.84 = 28,990.88 : x
  2. Step 2: Convert to fraction form
    88,157.60/132,255.84 = 28,990.88/x
  3. Step 3: Cross multiply
    88,157.60x = 132,255.84 × 28,990.88
  4. Step 4: Simplify right side
    88,157.60x = 3,834,213,186.74
  5. Step 5: Solve for x
    x = 3,834,213,186.74/88,157.60
  6. Step 6: Final answer
    x = 43,492.71

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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.