Home / 218,134.42-327,199.14-85,108.12

Finding the Fourth Proportional to 218,134.42, 327,199.14 and 85,108.12

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Solution

The fourth proportional to 218,134.42, 327,199.14 and 85,108.12 is: 127,661.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,134.42 : 327,199.14 = 85,108.12 : x
  2. Step 2: Convert to fraction form
    218,134.42/327,199.14 = 85,108.12/x
  3. Step 3: Cross multiply
    218,134.42x = 327,199.14 × 85,108.12
  4. Step 4: Simplify right side
    218,134.42x = 27,847,302,853.02
  5. Step 5: Solve for x
    x = 27,847,302,853.02/218,134.42
  6. Step 6: Final answer
    x = 127,661.21

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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.