Home / 111,525.12-153,853.33-71,218.71

Finding the Fourth Proportional to 111,525.12, 153,853.33 and 71,218.71

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Solution

The fourth proportional to 111,525.12, 153,853.33 and 71,218.71 is: 98,249.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,525.12 : 153,853.33 = 71,218.71 : x
  2. Step 2: Convert to fraction form
    111,525.12/153,853.33 = 71,218.71/x
  3. Step 3: Cross multiply
    111,525.12x = 153,853.33 × 71,218.71
  4. Step 4: Simplify right side
    111,525.12x = 10,957,235,691.80
  5. Step 5: Solve for x
    x = 10,957,235,691.80/111,525.12
  6. Step 6: Final answer
    x = 98,249.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.