Home / 172,436.17-258,665.19-54,112.18

Finding the Fourth Proportional to 172,436.17, 258,665.19 and 54,112.18

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Solution

The fourth proportional to 172,436.17, 258,665.19 and 54,112.18 is: 81,171.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,436.17 : 258,665.19 = 54,112.18 : x
  2. Step 2: Convert to fraction form
    172,436.17/258,665.19 = 54,112.18/x
  3. Step 3: Cross multiply
    172,436.17x = 258,665.19 × 54,112.18
  4. Step 4: Simplify right side
    172,436.17x = 13,996,937,050.45
  5. Step 5: Solve for x
    x = 13,996,937,050.45/172,436.17
  6. Step 6: Final answer
    x = 81,171.70

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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.