Home / 183,440.12-275,114-71,081.78

Finding the Fourth Proportional to 183,440.12, 275,114 and 71,081.78

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Solution

The fourth proportional to 183,440.12, 275,114 and 71,081.78 is: 106,604.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,440.12 : 275,114 = 71,081.78 : x
  2. Step 2: Convert to fraction form
    183,440.12/275,114 = 71,081.78/x
  3. Step 3: Cross multiply
    183,440.12x = 275,114 × 71,081.78
  4. Step 4: Simplify right side
    183,440.12x = 19,555,592,822.92
  5. Step 5: Solve for x
    x = 19,555,592,822.92/183,440.12
  6. Step 6: Final answer
    x = 106,604.78

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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.