Home / 281,191.04-421,951.41-103,821.71

Finding the Fourth Proportional to 281,191.04, 421,951.41 and 103,821.71

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Solution

The fourth proportional to 281,191.04, 421,951.41 and 103,821.71 is: 155,793.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,191.04 : 421,951.41 = 103,821.71 : x
  2. Step 2: Convert to fraction form
    281,191.04/421,951.41 = 103,821.71/x
  3. Step 3: Cross multiply
    281,191.04x = 421,951.41 × 103,821.71
  4. Step 4: Simplify right side
    281,191.04x = 43,807,716,923.11
  5. Step 5: Solve for x
    x = 43,807,716,923.11/281,191.04
  6. Step 6: Final answer
    x = 155,793.43

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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.