Home / 124,917.11-172,381.29-71,219.42

Finding the Fourth Proportional to 124,917.11, 172,381.29 and 71,219.42

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Solution

The fourth proportional to 124,917.11, 172,381.29 and 71,219.42 is: 98,280.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,917.11 : 172,381.29 = 71,219.42 : x
  2. Step 2: Convert to fraction form
    124,917.11/172,381.29 = 71,219.42/x
  3. Step 3: Cross multiply
    124,917.11x = 172,381.29 × 71,219.42
  4. Step 4: Simplify right side
    124,917.11x = 12,276,894,630.75
  5. Step 5: Solve for x
    x = 12,276,894,630.75/124,917.11
  6. Step 6: Final answer
    x = 98,280.33

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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.