Home / 141,679.50-195,517.72-78,017.16

Finding the Fourth Proportional to 141,679.50, 195,517.72 and 78,017.16

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Solution

The fourth proportional to 141,679.50, 195,517.72 and 78,017.16 is: 107,663.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,679.50 : 195,517.72 = 78,017.16 : x
  2. Step 2: Convert to fraction form
    141,679.50/195,517.72 = 78,017.16/x
  3. Step 3: Cross multiply
    141,679.50x = 195,517.72 × 78,017.16
  4. Step 4: Simplify right side
    141,679.50x = 15,253,737,244.08
  5. Step 5: Solve for x
    x = 15,253,737,244.08/141,679.50
  6. Step 6: Final answer
    x = 107,663.69

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1.5x scale

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.