Home / 111,882.24-154,393.92-61,581.12

Finding the Fourth Proportional to 111,882.24, 154,393.92 and 61,581.12

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Solution

The fourth proportional to 111,882.24, 154,393.92 and 61,581.12 is: 84,979.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,882.24 : 154,393.92 = 61,581.12 : x
  2. Step 2: Convert to fraction form
    111,882.24/154,393.92 = 61,581.12/x
  3. Step 3: Cross multiply
    111,882.24x = 154,393.92 × 61,581.12
  4. Step 4: Simplify right side
    111,882.24x = 9,507,750,514.79
  5. Step 5: Solve for x
    x = 9,507,750,514.79/111,882.24
  6. Step 6: Final answer
    x = 84,979.98

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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.