Home / 281,835.12-388,910.88-160,959.72

Finding the Fourth Proportional to 281,835.12, 388,910.88 and 160,959.72

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Solution

The fourth proportional to 281,835.12, 388,910.88 and 160,959.72 is: 222,112.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,835.12 : 388,910.88 = 160,959.72 : x
  2. Step 2: Convert to fraction form
    281,835.12/388,910.88 = 160,959.72/x
  3. Step 3: Cross multiply
    281,835.12x = 388,910.88 × 160,959.72
  4. Step 4: Simplify right side
    281,835.12x = 62,598,986,349.75
  5. Step 5: Solve for x
    x = 62,598,986,349.75/281,835.12
  6. Step 6: Final answer
    x = 222,112.09

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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.