Home / 111,538.29-153,951.26-63,806.61

Finding the Fourth Proportional to 111,538.29, 153,951.26 and 63,806.61

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Solution

The fourth proportional to 111,538.29, 153,951.26 and 63,806.61 is: 88,069.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,538.29 : 153,951.26 = 63,806.61 : x
  2. Step 2: Convert to fraction form
    111,538.29/153,951.26 = 63,806.61/x
  3. Step 3: Cross multiply
    111,538.29x = 153,951.26 × 63,806.61
  4. Step 4: Simplify right side
    111,538.29x = 9,823,107,686.80
  5. Step 5: Solve for x
    x = 9,823,107,686.80/111,538.29
  6. Step 6: Final answer
    x = 88,069.38

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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.