Home / 82,614.16-123,233.09-74,641.60

Finding the Fourth Proportional to 82,614.16, 123,233.09 and 74,641.60

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Solution

The fourth proportional to 82,614.16, 123,233.09 and 74,641.60 is: 111,340.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,614.16 : 123,233.09 = 74,641.60 : x
  2. Step 2: Convert to fraction form
    82,614.16/123,233.09 = 74,641.60/x
  3. Step 3: Cross multiply
    82,614.16x = 123,233.09 × 74,641.60
  4. Step 4: Simplify right side
    82,614.16x = 9,198,315,010.54
  5. Step 5: Solve for x
    x = 9,198,315,010.54/82,614.16
  6. Step 6: Final answer
    x = 111,340.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.