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Finding the Fourth Proportional to 132,100, 198,108.41 and 43,332.88

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Solution

The fourth proportional to 132,100, 198,108.41 and 43,332.88 is: 64,985.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,100 : 198,108.41 = 43,332.88 : x
  2. Step 2: Convert to fraction form
    132,100/198,108.41 = 43,332.88/x
  3. Step 3: Cross multiply
    132,100x = 198,108.41 × 43,332.88
  4. Step 4: Simplify right side
    132,100x = 8,584,607,740.86
  5. Step 5: Solve for x
    x = 8,584,607,740.86/132,100
  6. Step 6: Final answer
    x = 64,985.68

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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.