Home / 124,914.11-172,377.15-71,216.42

Finding the Fourth Proportional to 124,914.11, 172,377.15 and 71,216.42

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Solution

The fourth proportional to 124,914.11, 172,377.15 and 71,216.42 is: 98,276.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,914.11 : 172,377.15 = 71,216.42 : x
  2. Step 2: Convert to fraction form
    124,914.11/172,377.15 = 71,216.42/x
  3. Step 3: Cross multiply
    124,914.11x = 172,377.15 × 71,216.42
  4. Step 4: Simplify right side
    124,914.11x = 12,276,082,650.92
  5. Step 5: Solve for x
    x = 12,276,082,650.92/124,914.11
  6. Step 6: Final answer
    x = 98,276.19

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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.