Home / 131,330.70-196,996.05-121,193.10

Finding the Fourth Proportional to 131,330.70, 196,996.05 and 121,193.10

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Solution

The fourth proportional to 131,330.70, 196,996.05 and 121,193.10 is: 181,789.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,330.70 : 196,996.05 = 121,193.10 : x
  2. Step 2: Convert to fraction form
    131,330.70/196,996.05 = 121,193.10/x
  3. Step 3: Cross multiply
    131,330.70x = 196,996.05 × 121,193.10
  4. Step 4: Simplify right side
    131,330.70x = 23,874,561,987.26
  5. Step 5: Solve for x
    x = 23,874,561,987.26/131,330.70
  6. Step 6: Final answer
    x = 181,789.65

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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.