Home / 99,418.18-149,127.28-36,243.04

Finding the Fourth Proportional to 99,418.18, 149,127.28 and 36,243.04

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Solution

The fourth proportional to 99,418.18, 149,127.28 and 36,243.04 is: 54,364.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,418.18 : 149,127.28 = 36,243.04 : x
  2. Step 2: Convert to fraction form
    99,418.18/149,127.28 = 36,243.04/x
  3. Step 3: Cross multiply
    99,418.18x = 149,127.28 × 36,243.04
  4. Step 4: Simplify right side
    99,418.18x = 5,404,825,974.13
  5. Step 5: Solve for x
    x = 5,404,825,974.13/99,418.18
  6. Step 6: Final answer
    x = 54,364.56

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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.