Home / 137,788.56-206,721.72-54,740.88

Finding the Fourth Proportional to 137,788.56, 206,721.72 and 54,740.88

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Solution

The fourth proportional to 137,788.56, 206,721.72 and 54,740.88 is: 82,126.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,788.56 : 206,721.72 = 54,740.88 : x
  2. Step 2: Convert to fraction form
    137,788.56/206,721.72 = 54,740.88/x
  3. Step 3: Cross multiply
    137,788.56x = 206,721.72 × 54,740.88
  4. Step 4: Simplify right side
    137,788.56x = 11,316,128,867.91
  5. Step 5: Solve for x
    x = 11,316,128,867.91/137,788.56
  6. Step 6: Final answer
    x = 82,126.77

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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.