Home / 218,029.77-327,171.15-91,660.05

Finding the Fourth Proportional to 218,029.77, 327,171.15 and 91,660.05

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Solution

The fourth proportional to 218,029.77, 327,171.15 and 91,660.05 is: 137,543.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,029.77 : 327,171.15 = 91,660.05 : x
  2. Step 2: Convert to fraction form
    218,029.77/327,171.15 = 91,660.05/x
  3. Step 3: Cross multiply
    218,029.77x = 327,171.15 × 91,660.05
  4. Step 4: Simplify right side
    218,029.77x = 29,988,523,967.56
  5. Step 5: Solve for x
    x = 29,988,523,967.56/218,029.77
  6. Step 6: Final answer
    x = 137,543.25

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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.