Home / 137,721.30-206,569.80-37,872.60

Finding the Fourth Proportional to 137,721.30, 206,569.80 and 37,872.60

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Solution

The fourth proportional to 137,721.30, 206,569.80 and 37,872.60 is: 56,805.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,721.30 : 206,569.80 = 37,872.60 : x
  2. Step 2: Convert to fraction form
    137,721.30/206,569.80 = 37,872.60/x
  3. Step 3: Cross multiply
    137,721.30x = 206,569.80 × 37,872.60
  4. Step 4: Simplify right side
    137,721.30x = 7,823,335,407.48
  5. Step 5: Solve for x
    x = 7,823,335,407.48/137,721.30
  6. Step 6: Final answer
    x = 56,805.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.