Home / 106,861.75-147,456.45-59,108.61

Finding the Fourth Proportional to 106,861.75, 147,456.45 and 59,108.61

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Solution

The fourth proportional to 106,861.75, 147,456.45 and 59,108.61 is: 81,562.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,861.75 : 147,456.45 = 59,108.61 : x
  2. Step 2: Convert to fraction form
    106,861.75/147,456.45 = 59,108.61/x
  3. Step 3: Cross multiply
    106,861.75x = 147,456.45 × 59,108.61
  4. Step 4: Simplify right side
    106,861.75x = 8,715,945,795.03
  5. Step 5: Solve for x
    x = 8,715,945,795.03/106,861.75
  6. Step 6: Final answer
    x = 81,562.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.