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Finding the Fourth Proportional to 125,176.62, 172,743.52 and 67,817.39

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Solution

The fourth proportional to 125,176.62, 172,743.52 and 67,817.39 is: 93,587.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,176.62 : 172,743.52 = 67,817.39 : x
  2. Step 2: Convert to fraction form
    125,176.62/172,743.52 = 67,817.39/x
  3. Step 3: Cross multiply
    125,176.62x = 172,743.52 × 67,817.39
  4. Step 4: Simplify right side
    125,176.62x = 11,715,014,665.81
  5. Step 5: Solve for x
    x = 11,715,014,665.81/125,176.62
  6. Step 6: Final answer
    x = 93,587.88

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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.