Home / 82,124.16-123,186.15-19,794.66

Finding the Fourth Proportional to 82,124.16, 123,186.15 and 19,794.66

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Solution

The fourth proportional to 82,124.16, 123,186.15 and 19,794.66 is: 29,691.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,124.16 : 123,186.15 = 19,794.66 : x
  2. Step 2: Convert to fraction form
    82,124.16/123,186.15 = 19,794.66/x
  3. Step 3: Cross multiply
    82,124.16x = 123,186.15 × 19,794.66
  4. Step 4: Simplify right side
    82,124.16x = 2,438,427,955.96
  5. Step 5: Solve for x
    x = 2,438,427,955.96/82,124.16
  6. Step 6: Final answer
    x = 29,691.97

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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.