Home / 148,306.21-204,680.54-83,778.17

Finding the Fourth Proportional to 148,306.21, 204,680.54 and 83,778.17

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Solution

The fourth proportional to 148,306.21, 204,680.54 and 83,778.17 is: 115,624.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,306.21 : 204,680.54 = 83,778.17 : x
  2. Step 2: Convert to fraction form
    148,306.21/204,680.54 = 83,778.17/x
  3. Step 3: Cross multiply
    148,306.21x = 204,680.54 × 83,778.17
  4. Step 4: Simplify right side
    148,306.21x = 17,147,760,261.85
  5. Step 5: Solve for x
    x = 17,147,760,261.85/148,306.21
  6. Step 6: Final answer
    x = 115,624.02

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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.