Home / 123,638.73-185,456.07-39,397.75

Finding the Fourth Proportional to 123,638.73, 185,456.07 and 39,397.75

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Solution

The fourth proportional to 123,638.73, 185,456.07 and 39,397.75 is: 59,095.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,638.73 : 185,456.07 = 39,397.75 : x
  2. Step 2: Convert to fraction form
    123,638.73/185,456.07 = 39,397.75/x
  3. Step 3: Cross multiply
    123,638.73x = 185,456.07 × 39,397.75
  4. Step 4: Simplify right side
    123,638.73x = 7,306,551,881.84
  5. Step 5: Solve for x
    x = 7,306,551,881.84/123,638.73
  6. Step 6: Final answer
    x = 59,095.98

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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.