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Finding the Fourth Proportional to 122,337.79, 168,748.41 and 88,396.12

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Solution

The fourth proportional to 122,337.79, 168,748.41 and 88,396.12 is: 121,930.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,337.79 : 168,748.41 = 88,396.12 : x
  2. Step 2: Convert to fraction form
    122,337.79/168,748.41 = 88,396.12/x
  3. Step 3: Cross multiply
    122,337.79x = 168,748.41 × 88,396.12
  4. Step 4: Simplify right side
    122,337.79x = 14,916,704,700.17
  5. Step 5: Solve for x
    x = 14,916,704,700.17/122,337.79
  6. Step 6: Final answer
    x = 121,930.47

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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.