Home / 141,983.60-195,934.23-78,321.38

Finding the Fourth Proportional to 141,983.60, 195,934.23 and 78,321.38

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Solution

The fourth proportional to 141,983.60, 195,934.23 and 78,321.38 is: 108,081.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,983.60 : 195,934.23 = 78,321.38 : x
  2. Step 2: Convert to fraction form
    141,983.60/195,934.23 = 78,321.38/x
  3. Step 3: Cross multiply
    141,983.60x = 195,934.23 × 78,321.38
  4. Step 4: Simplify right side
    141,983.60x = 15,345,838,303.17
  5. Step 5: Solve for x
    x = 15,345,838,303.17/141,983.60
  6. Step 6: Final answer
    x = 108,081.77

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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.