Home / 111,371.12-153,668.88-71,059.20

Finding the Fourth Proportional to 111,371.12, 153,668.88 and 71,059.20

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Solution

The fourth proportional to 111,371.12, 153,668.88 and 71,059.20 is: 98,046.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,371.12 : 153,668.88 = 71,059.20 : x
  2. Step 2: Convert to fraction form
    111,371.12/153,668.88 = 71,059.20/x
  3. Step 3: Cross multiply
    111,371.12x = 153,668.88 × 71,059.20
  4. Step 4: Simplify right side
    111,371.12x = 10,919,587,677.70
  5. Step 5: Solve for x
    x = 10,919,587,677.70/111,371.12
  6. Step 6: Final answer
    x = 98,046.85

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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.