Home / 142,759.28-196,990.98-82,329.68

Finding the Fourth Proportional to 142,759.28, 196,990.98 and 82,329.68

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Solution

The fourth proportional to 142,759.28, 196,990.98 and 82,329.68 is: 113,605.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,759.28 : 196,990.98 = 82,329.68 : x
  2. Step 2: Convert to fraction form
    142,759.28/196,990.98 = 82,329.68/x
  3. Step 3: Cross multiply
    142,759.28x = 196,990.98 × 82,329.68
  4. Step 4: Simplify right side
    142,759.28x = 16,218,204,346.29
  5. Step 5: Solve for x
    x = 16,218,204,346.29/142,759.28
  6. Step 6: Final answer
    x = 113,605.25

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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.