Home / 148,829.33-205,381.03-80,844.78

Finding the Fourth Proportional to 148,829.33, 205,381.03 and 80,844.78

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Solution

The fourth proportional to 148,829.33, 205,381.03 and 80,844.78 is: 111,563.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,829.33 : 205,381.03 = 80,844.78 : x
  2. Step 2: Convert to fraction form
    148,829.33/205,381.03 = 80,844.78/x
  3. Step 3: Cross multiply
    148,829.33x = 205,381.03 × 80,844.78
  4. Step 4: Simplify right side
    148,829.33x = 16,603,984,186.52
  5. Step 5: Solve for x
    x = 16,603,984,186.52/148,829.33
  6. Step 6: Final answer
    x = 111,563.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.