Home / 141,521.28-195,327.27-81,132.48

Finding the Fourth Proportional to 141,521.28, 195,327.27 and 81,132.48

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Solution

The fourth proportional to 141,521.28, 195,327.27 and 81,132.48 is: 111,978.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,521.28 : 195,327.27 = 81,132.48 : x
  2. Step 2: Convert to fraction form
    141,521.28/195,327.27 = 81,132.48/x
  3. Step 3: Cross multiply
    141,521.28x = 195,327.27 × 81,132.48
  4. Step 4: Simplify right side
    141,521.28x = 15,847,385,826.73
  5. Step 5: Solve for x
    x = 15,847,385,826.73/141,521.28
  6. Step 6: Final answer
    x = 111,978.82

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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.