Home / 124,918.26-172,382.85-71,220.57

Finding the Fourth Proportional to 124,918.26, 172,382.85 and 71,220.57

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Solution

The fourth proportional to 124,918.26, 172,382.85 and 71,220.57 is: 98,281.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,918.26 : 172,382.85 = 71,220.57 : x
  2. Step 2: Convert to fraction form
    124,918.26/172,382.85 = 71,220.57/x
  3. Step 3: Cross multiply
    124,918.26x = 172,382.85 × 71,220.57
  4. Step 4: Simplify right side
    124,918.26x = 12,277,204,835.22
  5. Step 5: Solve for x
    x = 12,277,204,835.22/124,918.26
  6. Step 6: Final answer
    x = 98,281.91

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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.