Home / 124,979.34-172,471.20-67,618.44

Finding the Fourth Proportional to 124,979.34, 172,471.20 and 67,618.44

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Solution

The fourth proportional to 124,979.34, 172,471.20 and 67,618.44 is: 93,313.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,979.34 : 172,471.20 = 67,618.44 : x
  2. Step 2: Convert to fraction form
    124,979.34/172,471.20 = 67,618.44/x
  3. Step 3: Cross multiply
    124,979.34x = 172,471.20 × 67,618.44
  4. Step 4: Simplify right side
    124,979.34x = 11,662,233,488.93
  5. Step 5: Solve for x
    x = 11,662,233,488.93/124,979.34
  6. Step 6: Final answer
    x = 93,313.29

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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.