Home / 131,257.31-196,962.42-55,351.20

Finding the Fourth Proportional to 131,257.31, 196,962.42 and 55,351.20

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Solution

The fourth proportional to 131,257.31, 196,962.42 and 55,351.20 is: 83,059.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,257.31 : 196,962.42 = 55,351.20 : x
  2. Step 2: Convert to fraction form
    131,257.31/196,962.42 = 55,351.20/x
  3. Step 3: Cross multiply
    131,257.31x = 196,962.42 × 55,351.20
  4. Step 4: Simplify right side
    131,257.31x = 10,902,106,301.90
  5. Step 5: Solve for x
    x = 10,902,106,301.90/131,257.31
  6. Step 6: Final answer
    x = 83,059.04

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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.