Home / 281,100.04-421,451.61-103,583.68

Finding the Fourth Proportional to 281,100.04, 421,451.61 and 103,583.68

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Solution

The fourth proportional to 281,100.04, 421,451.61 and 103,583.68 is: 155,302.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,100.04 : 421,451.61 = 103,583.68 : x
  2. Step 2: Convert to fraction form
    281,100.04/421,451.61 = 103,583.68/x
  3. Step 3: Cross multiply
    281,100.04x = 421,451.61 × 103,583.68
  4. Step 4: Simplify right side
    281,100.04x = 43,655,508,705.72
  5. Step 5: Solve for x
    x = 43,655,508,705.72/281,100.04
  6. Step 6: Final answer
    x = 155,302.39

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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.