Home / 141,760.62-195,637.86-81,330.75

Finding the Fourth Proportional to 141,760.62, 195,637.86 and 81,330.75

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Solution

The fourth proportional to 141,760.62, 195,637.86 and 81,330.75 is: 112,241.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,760.62 : 195,637.86 = 81,330.75 : x
  2. Step 2: Convert to fraction form
    141,760.62/195,637.86 = 81,330.75/x
  3. Step 3: Cross multiply
    141,760.62x = 195,637.86 × 81,330.75
  4. Step 4: Simplify right side
    141,760.62x = 15,911,373,882.20
  5. Step 5: Solve for x
    x = 15,911,373,882.20/141,760.62
  6. Step 6: Final answer
    x = 112,241.14

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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.