Home / 141,839.01-195,737.24-78,176.79

Finding the Fourth Proportional to 141,839.01, 195,737.24 and 78,176.79

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Solution

The fourth proportional to 141,839.01, 195,737.24 and 78,176.79 is: 107,883.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,839.01 : 195,737.24 = 78,176.79 : x
  2. Step 2: Convert to fraction form
    141,839.01/195,737.24 = 78,176.79/x
  3. Step 3: Cross multiply
    141,839.01x = 195,737.24 × 78,176.79
  4. Step 4: Simplify right side
    141,839.01x = 15,302,109,302.10
  5. Step 5: Solve for x
    x = 15,302,109,302.10/141,839.01
  6. Step 6: Final answer
    x = 107,883.64

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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.