Home / 99,140.04-148,456.53-54,717.48

Finding the Fourth Proportional to 99,140.04, 148,456.53 and 54,717.48

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Solution

The fourth proportional to 99,140.04, 148,456.53 and 54,717.48 is: 81,936.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,140.04 : 148,456.53 = 54,717.48 : x
  2. Step 2: Convert to fraction form
    99,140.04/148,456.53 = 54,717.48/x
  3. Step 3: Cross multiply
    99,140.04x = 148,456.53 × 54,717.48
  4. Step 4: Simplify right side
    99,140.04x = 8,123,167,211.14
  5. Step 5: Solve for x
    x = 8,123,167,211.14/99,140.04
  6. Step 6: Final answer
    x = 81,936.29

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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.