Home / 123,638.46-185,488.87-57,125.61

Finding the Fourth Proportional to 123,638.46, 185,488.87 and 57,125.61

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Solution

The fourth proportional to 123,638.46, 185,488.87 and 57,125.61 is: 85,702.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,638.46 : 185,488.87 = 57,125.61 : x
  2. Step 2: Convert to fraction form
    123,638.46/185,488.87 = 57,125.61/x
  3. Step 3: Cross multiply
    123,638.46x = 185,488.87 × 57,125.61
  4. Step 4: Simplify right side
    123,638.46x = 10,596,164,846.96
  5. Step 5: Solve for x
    x = 10,596,164,846.96/123,638.46
  6. Step 6: Final answer
    x = 85,702.82

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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.