Home / 141,979.86-195,932.40-81,562.20

Finding the Fourth Proportional to 141,979.86, 195,932.40 and 81,562.20

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Solution

The fourth proportional to 141,979.86, 195,932.40 and 81,562.20 is: 112,555.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,979.86 : 195,932.40 = 81,562.20 : x
  2. Step 2: Convert to fraction form
    141,979.86/195,932.40 = 81,562.20/x
  3. Step 3: Cross multiply
    141,979.86x = 195,932.40 × 81,562.20
  4. Step 4: Simplify right side
    141,979.86x = 15,980,677,595.28
  5. Step 5: Solve for x
    x = 15,980,677,595.28/141,979.86
  6. Step 6: Final answer
    x = 112,555.95

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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.