Home / 172,478.72-258,761.12-60,160.55

Finding the Fourth Proportional to 172,478.72, 258,761.12 and 60,160.55

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Solution

The fourth proportional to 172,478.72, 258,761.12 and 60,160.55 is: 90,255.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,478.72 : 258,761.12 = 60,160.55 : x
  2. Step 2: Convert to fraction form
    172,478.72/258,761.12 = 60,160.55/x
  3. Step 3: Cross multiply
    172,478.72x = 258,761.12 × 60,160.55
  4. Step 4: Simplify right side
    172,478.72x = 15,567,209,703.21
  5. Step 5: Solve for x
    x = 15,567,209,703.21/172,478.72
  6. Step 6: Final answer
    x = 90,255.83

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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.