Home / 125,231.20-172,818.64-67,872.20

Finding the Fourth Proportional to 125,231.20, 172,818.64 and 67,872.20

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Solution

The fourth proportional to 125,231.20, 172,818.64 and 67,872.20 is: 93,663.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,231.20 : 172,818.64 = 67,872.20 : x
  2. Step 2: Convert to fraction form
    125,231.20/172,818.64 = 67,872.20/x
  3. Step 3: Cross multiply
    125,231.20x = 172,818.64 × 67,872.20
  4. Step 4: Simplify right side
    125,231.20x = 11,729,581,297.81
  5. Step 5: Solve for x
    x = 11,729,581,297.81/125,231.20
  6. Step 6: Final answer
    x = 93,663.41

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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.