Home / 132,715.32-198,605.22-82,818.90

Finding the Fourth Proportional to 132,715.32, 198,605.22 and 82,818.90

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Solution

The fourth proportional to 132,715.32, 198,605.22 and 82,818.90 is: 123,936.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,715.32 : 198,605.22 = 82,818.90 : x
  2. Step 2: Convert to fraction form
    132,715.32/198,605.22 = 82,818.90/x
  3. Step 3: Cross multiply
    132,715.32x = 198,605.22 × 82,818.90
  4. Step 4: Simplify right side
    132,715.32x = 16,448,265,854.66
  5. Step 5: Solve for x
    x = 16,448,265,854.66/132,715.32
  6. Step 6: Final answer
    x = 123,936.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.