Home / 172,500.60-258,761.88-54,176.61

Finding the Fourth Proportional to 172,500.60, 258,761.88 and 54,176.61

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Solution

The fourth proportional to 172,500.60, 258,761.88 and 54,176.61 is: 81,268.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,500.60 : 258,761.88 = 54,176.61 : x
  2. Step 2: Convert to fraction form
    172,500.60/258,761.88 = 54,176.61/x
  3. Step 3: Cross multiply
    172,500.60x = 258,761.88 × 54,176.61
  4. Step 4: Simplify right side
    172,500.60x = 14,018,841,455.63
  5. Step 5: Solve for x
    x = 14,018,841,455.63/172,500.60
  6. Step 6: Final answer
    x = 81,268.36

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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.