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Finding the Fourth Proportional to 83,704.61, 125,425.62 and 71,173.10

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Solution

The fourth proportional to 83,704.61, 125,425.62 and 71,173.10 is: 106,648.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,704.61 : 125,425.62 = 71,173.10 : x
  2. Step 2: Convert to fraction form
    83,704.61/125,425.62 = 71,173.10/x
  3. Step 3: Cross multiply
    83,704.61x = 125,425.62 × 71,173.10
  4. Step 4: Simplify right side
    83,704.61x = 8,926,929,567.69
  5. Step 5: Solve for x
    x = 8,926,929,567.69/83,704.61
  6. Step 6: Final answer
    x = 106,648.01

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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.