Home / 124,861.70-187,292.55-82,871.30

Finding the Fourth Proportional to 124,861.70, 187,292.55 and 82,871.30

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Solution

The fourth proportional to 124,861.70, 187,292.55 and 82,871.30 is: 124,306.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,861.70 : 187,292.55 = 82,871.30 : x
  2. Step 2: Convert to fraction form
    124,861.70/187,292.55 = 82,871.30/x
  3. Step 3: Cross multiply
    124,861.70x = 187,292.55 × 82,871.30
  4. Step 4: Simplify right side
    124,861.70x = 15,521,177,098.82
  5. Step 5: Solve for x
    x = 15,521,177,098.82/124,861.70
  6. Step 6: Final answer
    x = 124,306.95

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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.