Home / 281,201.60-421,839.40-103,833.20

Finding the Fourth Proportional to 281,201.60, 421,839.40 and 103,833.20

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Solution

The fourth proportional to 281,201.60, 421,839.40 and 103,833.20 is: 155,763.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,201.60 : 421,839.40 = 103,833.20 : x
  2. Step 2: Convert to fraction form
    281,201.60/421,839.40 = 103,833.20/x
  3. Step 3: Cross multiply
    281,201.60x = 421,839.40 × 103,833.20
  4. Step 4: Simplify right side
    281,201.60x = 43,800,934,788.08
  5. Step 5: Solve for x
    x = 43,800,934,788.08/281,201.60
  6. Step 6: Final answer
    x = 155,763.46

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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.