Home / 137,481.20-206,221.64-37,642.16

Finding the Fourth Proportional to 137,481.20, 206,221.64 and 37,642.16

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Solution

The fourth proportional to 137,481.20, 206,221.64 and 37,642.16 is: 56,463.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,481.20 : 206,221.64 = 37,642.16 : x
  2. Step 2: Convert to fraction form
    137,481.20/206,221.64 = 37,642.16/x
  3. Step 3: Cross multiply
    137,481.20x = 206,221.64 × 37,642.16
  4. Step 4: Simplify right side
    137,481.20x = 7,762,627,968.34
  5. Step 5: Solve for x
    x = 7,762,627,968.34/137,481.20
  6. Step 6: Final answer
    x = 56,463.20

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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.