Home / 124,879.59-172,338.57-71,173.08

Finding the Fourth Proportional to 124,879.59, 172,338.57 and 71,173.08

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Solution

The fourth proportional to 124,879.59, 172,338.57 and 71,173.08 is: 98,221.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,879.59 : 172,338.57 = 71,173.08 : x
  2. Step 2: Convert to fraction form
    124,879.59/172,338.57 = 71,173.08/x
  3. Step 3: Cross multiply
    124,879.59x = 172,338.57 × 71,173.08
  4. Step 4: Simplify right side
    124,879.59x = 12,265,866,829.70
  5. Step 5: Solve for x
    x = 12,265,866,829.70/124,879.59
  6. Step 6: Final answer
    x = 98,221.55

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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.