Home / 172,555.92-258,702.12-54,158.76

Finding the Fourth Proportional to 172,555.92, 258,702.12 and 54,158.76

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Solution

The fourth proportional to 172,555.92, 258,702.12 and 54,158.76 is: 81,196.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,555.92 : 258,702.12 = 54,158.76 : x
  2. Step 2: Convert to fraction form
    172,555.92/258,702.12 = 54,158.76/x
  3. Step 3: Cross multiply
    172,555.92x = 258,702.12 × 54,158.76
  4. Step 4: Simplify right side
    172,555.92x = 14,010,986,028.57
  5. Step 5: Solve for x
    x = 14,010,986,028.57/172,555.92
  6. Step 6: Final answer
    x = 81,196.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.