Home / 172,436.76-258,562.80-76,286.52

Finding the Fourth Proportional to 172,436.76, 258,562.80 and 76,286.52

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Solution

The fourth proportional to 172,436.76, 258,562.80 and 76,286.52 is: 114,388.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,436.76 : 258,562.80 = 76,286.52 : x
  2. Step 2: Convert to fraction form
    172,436.76/258,562.80 = 76,286.52/x
  3. Step 3: Cross multiply
    172,436.76x = 258,562.80 × 76,286.52
  4. Step 4: Simplify right side
    172,436.76x = 19,724,856,213.46
  5. Step 5: Solve for x
    x = 19,724,856,213.46/172,436.76
  6. Step 6: Final answer
    x = 114,388.93

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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.