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Finding the Fourth Proportional to 125,467.76, 173,134.80 and 71,744.10

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Solution

The fourth proportional to 125,467.76, 173,134.80 and 71,744.10 is: 99,000.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,467.76 : 173,134.80 = 71,744.10 : x
  2. Step 2: Convert to fraction form
    125,467.76/173,134.80 = 71,744.10/x
  3. Step 3: Cross multiply
    125,467.76x = 173,134.80 × 71,744.10
  4. Step 4: Simplify right side
    125,467.76x = 12,421,400,404.68
  5. Step 5: Solve for x
    x = 12,421,400,404.68/125,467.76
  6. Step 6: Final answer
    x = 99,000.73

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1.5x scale

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.