Home / 141,376.80-195,090.48-80,940

Finding the Fourth Proportional to 141,376.80, 195,090.48 and 80,940

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Solution

The fourth proportional to 141,376.80, 195,090.48 and 80,940 is: 111,691.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,376.80 : 195,090.48 = 80,940 : x
  2. Step 2: Convert to fraction form
    141,376.80/195,090.48 = 80,940/x
  3. Step 3: Cross multiply
    141,376.80x = 195,090.48 × 80,940
  4. Step 4: Simplify right side
    141,376.80x = 15,790,623,451.20
  5. Step 5: Solve for x
    x = 15,790,623,451.20/141,376.80
  6. Step 6: Final answer
    x = 111,691.76

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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.