Home / 129,247.20-194,016.60-99,795.60

Finding the Fourth Proportional to 129,247.20, 194,016.60 and 99,795.60

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Solution

The fourth proportional to 129,247.20, 194,016.60 and 99,795.60 is: 149,805.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,247.20 : 194,016.60 = 99,795.60 : x
  2. Step 2: Convert to fraction form
    129,247.20/194,016.60 = 99,795.60/x
  3. Step 3: Cross multiply
    129,247.20x = 194,016.60 × 99,795.60
  4. Step 4: Simplify right side
    129,247.20x = 19,362,003,006.96
  5. Step 5: Solve for x
    x = 19,362,003,006.96/129,247.20
  6. Step 6: Final answer
    x = 149,805.98

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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.