Home / 281,106.30-421,659.45-163,081.20

Finding the Fourth Proportional to 281,106.30, 421,659.45 and 163,081.20

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Solution

The fourth proportional to 281,106.30, 421,659.45 and 163,081.20 is: 244,621.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,106.30 : 421,659.45 = 163,081.20 : x
  2. Step 2: Convert to fraction form
    281,106.30/421,659.45 = 163,081.20/x
  3. Step 3: Cross multiply
    281,106.30x = 421,659.45 × 163,081.20
  4. Step 4: Simplify right side
    281,106.30x = 68,764,729,097.34
  5. Step 5: Solve for x
    x = 68,764,729,097.34/281,106.30
  6. Step 6: Final answer
    x = 244,621.80

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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.