Home / 141,560.54-195,354.24-81,134.78

Finding the Fourth Proportional to 141,560.54, 195,354.24 and 81,134.78

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Solution

The fourth proportional to 141,560.54, 195,354.24 and 81,134.78 is: 111,966.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,560.54 : 195,354.24 = 81,134.78 : x
  2. Step 2: Convert to fraction form
    141,560.54/195,354.24 = 81,134.78/x
  3. Step 3: Cross multiply
    141,560.54x = 195,354.24 × 81,134.78
  4. Step 4: Simplify right side
    141,560.54x = 15,850,023,284.47
  5. Step 5: Solve for x
    x = 15,850,023,284.47/141,560.54
  6. Step 6: Final answer
    x = 111,966.39

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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.