Home / 220,217.07-303,916.28-124,721.31

Finding the Fourth Proportional to 220,217.07, 303,916.28 and 124,721.31

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Solution

The fourth proportional to 220,217.07, 303,916.28 and 124,721.31 is: 172,124.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,217.07 : 303,916.28 = 124,721.31 : x
  2. Step 2: Convert to fraction form
    220,217.07/303,916.28 = 124,721.31/x
  3. Step 3: Cross multiply
    220,217.07x = 303,916.28 × 124,721.31
  4. Step 4: Simplify right side
    220,217.07x = 37,904,835,948.32
  5. Step 5: Solve for x
    x = 37,904,835,948.32/220,217.07
  6. Step 6: Final answer
    x = 172,124.88

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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.