Home / 85,514.10-127,644.89-75,414.00

Finding the Fourth Proportional to 85,514.10, 127,644.89 and 75,414.00

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Solution

The fourth proportional to 85,514.10, 127,644.89 and 75,414.00 is: 112,568.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,514.10 : 127,644.89 = 75,414.00 : x
  2. Step 2: Convert to fraction form
    85,514.10/127,644.89 = 75,414.00/x
  3. Step 3: Cross multiply
    85,514.10x = 127,644.89 × 75,414.00
  4. Step 4: Simplify right side
    85,514.10x = 9,626,211,836.06
  5. Step 5: Solve for x
    x = 9,626,211,836.06/85,514.10
  6. Step 6: Final answer
    x = 112,568.71

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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.