Home / 111,382.43-153,693.97-71,119.76

Finding the Fourth Proportional to 111,382.43, 153,693.97 and 71,119.76

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Solution

The fourth proportional to 111,382.43, 153,693.97 and 71,119.76 is: 98,136.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,382.43 : 153,693.97 = 71,119.76 : x
  2. Step 2: Convert to fraction form
    111,382.43/153,693.97 = 71,119.76/x
  3. Step 3: Cross multiply
    111,382.43x = 153,693.97 × 71,119.76
  4. Step 4: Simplify right side
    111,382.43x = 10,930,678,466.28
  5. Step 5: Solve for x
    x = 10,930,678,466.28/111,382.43
  6. Step 6: Final answer
    x = 98,136.47

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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.