Home / 124,876.32-172,329.24-68,287.69

Finding the Fourth Proportional to 124,876.32, 172,329.24 and 68,287.69

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Solution

The fourth proportional to 124,876.32, 172,329.24 and 68,287.69 is: 94,236.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,876.32 : 172,329.24 = 68,287.69 : x
  2. Step 2: Convert to fraction form
    124,876.32/172,329.24 = 68,287.69/x
  3. Step 3: Cross multiply
    124,876.32x = 172,329.24 × 68,287.69
  4. Step 4: Simplify right side
    124,876.32x = 11,767,965,719.06
  5. Step 5: Solve for x
    x = 11,767,965,719.06/124,876.32
  6. Step 6: Final answer
    x = 94,236.97

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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.