Home / 141,964.40-195,916.65-78,306.23

Finding the Fourth Proportional to 141,964.40, 195,916.65 and 78,306.23

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Solution

The fourth proportional to 141,964.40, 195,916.65 and 78,306.23 is: 108,065.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,964.40 : 195,916.65 = 78,306.23 : x
  2. Step 2: Convert to fraction form
    141,964.40/195,916.65 = 78,306.23/x
  3. Step 3: Cross multiply
    141,964.40x = 195,916.65 × 78,306.23
  4. Step 4: Simplify right side
    141,964.40x = 15,341,494,255.73
  5. Step 5: Solve for x
    x = 15,341,494,255.73/141,964.40
  6. Step 6: Final answer
    x = 108,065.78

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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.