Home / 137,795.31-206,731.85-54,747.63

Finding the Fourth Proportional to 137,795.31, 206,731.85 and 54,747.63

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Solution

The fourth proportional to 137,795.31, 206,731.85 and 54,747.63 is: 82,136.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,795.31 : 206,731.85 = 54,747.63 : x
  2. Step 2: Convert to fraction form
    137,795.31/206,731.85 = 54,747.63/x
  3. Step 3: Cross multiply
    137,795.31x = 206,731.85 × 54,747.63
  4. Step 4: Simplify right side
    137,795.31x = 11,318,078,559.28
  5. Step 5: Solve for x
    x = 11,318,078,559.28/137,795.31
  6. Step 6: Final answer
    x = 82,136.89

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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.