Home / 281,138.10-421,660.16-123,324.18

Finding the Fourth Proportional to 281,138.10, 421,660.16 and 123,324.18

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Solution

The fourth proportional to 281,138.10, 421,660.16 and 123,324.18 is: 184,965.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,138.10 : 421,660.16 = 123,324.18 : x
  2. Step 2: Convert to fraction form
    281,138.10/421,660.16 = 123,324.18/x
  3. Step 3: Cross multiply
    281,138.10x = 421,660.16 × 123,324.18
  4. Step 4: Simplify right side
    281,138.10x = 52,000,893,470.67
  5. Step 5: Solve for x
    x = 52,000,893,470.67/281,138.10
  6. Step 6: Final answer
    x = 184,965.66

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1.5x scale

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.