Home / 123,638.38-185,455.56-39,397.41

Finding the Fourth Proportional to 123,638.38, 185,455.56 and 39,397.41

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Solution

The fourth proportional to 123,638.38, 185,455.56 and 39,397.41 is: 59,095.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,638.38 : 185,455.56 = 39,397.41 : x
  2. Step 2: Convert to fraction form
    123,638.38/185,455.56 = 39,397.41/x
  3. Step 3: Cross multiply
    123,638.38x = 185,455.56 × 39,397.41
  4. Step 4: Simplify right side
    123,638.38x = 7,306,468,586.36
  5. Step 5: Solve for x
    x = 7,306,468,586.36/123,638.38
  6. Step 6: Final answer
    x = 59,095.47

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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.