Home / 142,979.15-197,320.17-82,560.84

Finding the Fourth Proportional to 142,979.15, 197,320.17 and 82,560.84

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Solution

The fourth proportional to 142,979.15, 197,320.17 and 82,560.84 is: 113,939.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,979.15 : 197,320.17 = 82,560.84 : x
  2. Step 2: Convert to fraction form
    142,979.15/197,320.17 = 82,560.84/x
  3. Step 3: Cross multiply
    142,979.15x = 197,320.17 × 82,560.84
  4. Step 4: Simplify right side
    142,979.15x = 16,290,918,984.14
  5. Step 5: Solve for x
    x = 16,290,918,984.14/142,979.15
  6. Step 6: Final answer
    x = 113,939.13

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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.