Home / 136,190.40-204,223.20-73,000.80

Finding the Fourth Proportional to 136,190.40, 204,223.20 and 73,000.80

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Solution

The fourth proportional to 136,190.40, 204,223.20 and 73,000.80 is: 109,467.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,190.40 : 204,223.20 = 73,000.80 : x
  2. Step 2: Convert to fraction form
    136,190.40/204,223.20 = 73,000.80/x
  3. Step 3: Cross multiply
    136,190.40x = 204,223.20 × 73,000.80
  4. Step 4: Simplify right side
    136,190.40x = 14,908,456,978.56
  5. Step 5: Solve for x
    x = 14,908,456,978.56/136,190.40
  6. Step 6: Final answer
    x = 109,467.75

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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.