Home / 281,881.45-422,621.30-132,040

Finding the Fourth Proportional to 281,881.45, 422,621.30 and 132,040

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Solution

The fourth proportional to 281,881.45, 422,621.30 and 132,040 is: 197,965.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,881.45 : 422,621.30 = 132,040 : x
  2. Step 2: Convert to fraction form
    281,881.45/422,621.30 = 132,040/x
  3. Step 3: Cross multiply
    281,881.45x = 422,621.30 × 132,040
  4. Step 4: Simplify right side
    281,881.45x = 55,802,916,452
  5. Step 5: Solve for x
    x = 55,802,916,452/281,881.45
  6. Step 6: Final answer
    x = 197,965.91

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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.