Home / 124,976.30-172,287.86-89,104.02

Finding the Fourth Proportional to 124,976.30, 172,287.86 and 89,104.02

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Solution

The fourth proportional to 124,976.30, 172,287.86 and 89,104.02 is: 122,835.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,976.30 : 172,287.86 = 89,104.02 : x
  2. Step 2: Convert to fraction form
    124,976.30/172,287.86 = 89,104.02/x
  3. Step 3: Cross multiply
    124,976.30x = 172,287.86 × 89,104.02
  4. Step 4: Simplify right side
    124,976.30x = 15,351,540,923.20
  5. Step 5: Solve for x
    x = 15,351,540,923.20/124,976.30
  6. Step 6: Final answer
    x = 122,835.62

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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.