Home / 218,130.05-327,192.63-85,103.73

Finding the Fourth Proportional to 218,130.05, 327,192.63 and 85,103.73

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Solution

The fourth proportional to 218,130.05, 327,192.63 and 85,103.73 is: 127,654.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,130.05 : 327,192.63 = 85,103.73 : x
  2. Step 2: Convert to fraction form
    218,130.05/327,192.63 = 85,103.73/x
  3. Step 3: Cross multiply
    218,130.05x = 327,192.63 × 85,103.73
  4. Step 4: Simplify right side
    218,130.05x = 27,845,311,661.70
  5. Step 5: Solve for x
    x = 27,845,311,661.70/218,130.05
  6. Step 6: Final answer
    x = 127,654.63

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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.