Home / 231,938.87-320,076.87-129,964.55

Finding the Fourth Proportional to 231,938.87, 320,076.87 and 129,964.55

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Solution

The fourth proportional to 231,938.87, 320,076.87 and 129,964.55 is: 179,351.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,938.87 : 320,076.87 = 129,964.55 : x
  2. Step 2: Convert to fraction form
    231,938.87/320,076.87 = 129,964.55/x
  3. Step 3: Cross multiply
    231,938.87x = 320,076.87 × 129,964.55
  4. Step 4: Simplify right side
    231,938.87x = 41,598,646,374.96
  5. Step 5: Solve for x
    x = 41,598,646,374.96/231,938.87
  6. Step 6: Final answer
    x = 179,351.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.