Home / 219,553.13-302,979.39-124,057.78

Finding the Fourth Proportional to 219,553.13, 302,979.39 and 124,057.78

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Solution

The fourth proportional to 219,553.13, 302,979.39 and 124,057.78 is: 171,197.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,553.13 : 302,979.39 = 124,057.78 : x
  2. Step 2: Convert to fraction form
    219,553.13/302,979.39 = 124,057.78/x
  3. Step 3: Cross multiply
    219,553.13x = 302,979.39 × 124,057.78
  4. Step 4: Simplify right side
    219,553.13x = 37,586,949,286.49
  5. Step 5: Solve for x
    x = 37,586,949,286.49/219,553.13
  6. Step 6: Final answer
    x = 171,197.51

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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.