Home / 141,974.67-195,926.55-78,311.91

Finding the Fourth Proportional to 141,974.67, 195,926.55 and 78,311.91

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Solution

The fourth proportional to 141,974.67, 195,926.55 and 78,311.91 is: 108,071.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,974.67 : 195,926.55 = 78,311.91 : x
  2. Step 2: Convert to fraction form
    141,974.67/195,926.55 = 78,311.91/x
  3. Step 3: Cross multiply
    141,974.67x = 195,926.55 × 78,311.91
  4. Step 4: Simplify right side
    141,974.67x = 15,343,382,350.21
  5. Step 5: Solve for x
    x = 15,343,382,350.21/141,974.67
  6. Step 6: Final answer
    x = 108,071.27

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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.