Home / 141,951.06-195,890.13-78,294.78

Finding the Fourth Proportional to 141,951.06, 195,890.13 and 78,294.78

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Solution

The fourth proportional to 141,951.06, 195,890.13 and 78,294.78 is: 108,045.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,951.06 : 195,890.13 = 78,294.78 : x
  2. Step 2: Convert to fraction form
    141,951.06/195,890.13 = 78,294.78/x
  3. Step 3: Cross multiply
    141,951.06x = 195,890.13 × 78,294.78
  4. Step 4: Simplify right side
    141,951.06x = 15,337,174,632.52
  5. Step 5: Solve for x
    x = 15,337,174,632.52/141,951.06
  6. Step 6: Final answer
    x = 108,045.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.