Home / 124,787.32-172,237.10-71,103.96

Finding the Fourth Proportional to 124,787.32, 172,237.10 and 71,103.96

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Solution

The fourth proportional to 124,787.32, 172,237.10 and 71,103.96 is: 98,140.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,787.32 : 172,237.10 = 71,103.96 : x
  2. Step 2: Convert to fraction form
    124,787.32/172,237.10 = 71,103.96/x
  3. Step 3: Cross multiply
    124,787.32x = 172,237.10 × 71,103.96
  4. Step 4: Simplify right side
    124,787.32x = 12,246,739,868.92
  5. Step 5: Solve for x
    x = 12,246,739,868.92/124,787.32
  6. Step 6: Final answer
    x = 98,140.90

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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.