Home / 108,911.26-150,279.91-68,070.57

Finding the Fourth Proportional to 108,911.26, 150,279.91 and 68,070.57

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Solution

The fourth proportional to 108,911.26, 150,279.91 and 68,070.57 is: 93,926.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,911.26 : 150,279.91 = 68,070.57 : x
  2. Step 2: Convert to fraction form
    108,911.26/150,279.91 = 68,070.57/x
  3. Step 3: Cross multiply
    108,911.26x = 150,279.91 × 68,070.57
  4. Step 4: Simplify right side
    108,911.26x = 10,229,639,526.62
  5. Step 5: Solve for x
    x = 10,229,639,526.62/108,911.26
  6. Step 6: Final answer
    x = 93,926.37

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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.