Home / 218,139.30-327,099.60-99,676.80

Finding the Fourth Proportional to 218,139.30, 327,099.60 and 99,676.80

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Solution

The fourth proportional to 218,139.30, 327,099.60 and 99,676.80 is: 149,465.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,139.30 : 327,099.60 = 99,676.80 : x
  2. Step 2: Convert to fraction form
    218,139.30/327,099.60 = 99,676.80/x
  3. Step 3: Cross multiply
    218,139.30x = 327,099.60 × 99,676.80
  4. Step 4: Simplify right side
    218,139.30x = 32,604,241,409.28
  5. Step 5: Solve for x
    x = 32,604,241,409.28/218,139.30
  6. Step 6: Final answer
    x = 149,465.23

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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.