Home / 82,143.18-123,269.45-44,712.68

Finding the Fourth Proportional to 82,143.18, 123,269.45 and 44,712.68

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Solution

The fourth proportional to 82,143.18, 123,269.45 and 44,712.68 is: 67,098.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,143.18 : 123,269.45 = 44,712.68 : x
  2. Step 2: Convert to fraction form
    82,143.18/123,269.45 = 44,712.68/x
  3. Step 3: Cross multiply
    82,143.18x = 123,269.45 × 44,712.68
  4. Step 4: Simplify right side
    82,143.18x = 5,511,706,631.72
  5. Step 5: Solve for x
    x = 5,511,706,631.72/82,143.18
  6. Step 6: Final answer
    x = 67,098.77

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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.