Home / 141,806.70-195,694.55-78,146.76

Finding the Fourth Proportional to 141,806.70, 195,694.55 and 78,146.76

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Solution

The fourth proportional to 141,806.70, 195,694.55 and 78,146.76 is: 107,843.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,806.70 : 195,694.55 = 78,146.76 : x
  2. Step 2: Convert to fraction form
    141,806.70/195,694.55 = 78,146.76/x
  3. Step 3: Cross multiply
    141,806.70x = 195,694.55 × 78,146.76
  4. Step 4: Simplify right side
    141,806.70x = 15,292,894,641.42
  5. Step 5: Solve for x
    x = 15,292,894,641.42/141,806.70
  6. Step 6: Final answer
    x = 107,843.24

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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.