Home / 82,176.12-123,264.18-19,846.62

Finding the Fourth Proportional to 82,176.12, 123,264.18 and 19,846.62

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Solution

The fourth proportional to 82,176.12, 123,264.18 and 19,846.62 is: 29,769.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,176.12 : 123,264.18 = 19,846.62 : x
  2. Step 2: Convert to fraction form
    82,176.12/123,264.18 = 19,846.62/x
  3. Step 3: Cross multiply
    82,176.12x = 123,264.18 × 19,846.62
  4. Step 4: Simplify right side
    82,176.12x = 2,446,377,340.07
  5. Step 5: Solve for x
    x = 2,446,377,340.07/82,176.12
  6. Step 6: Final answer
    x = 29,769.93

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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.