Home / 135,989.15-203,985.61-36,148.85

Finding the Fourth Proportional to 135,989.15, 203,985.61 and 36,148.85

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Solution

The fourth proportional to 135,989.15, 203,985.61 and 36,148.85 is: 54,223.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,989.15 : 203,985.61 = 36,148.85 : x
  2. Step 2: Convert to fraction form
    135,989.15/203,985.61 = 36,148.85/x
  3. Step 3: Cross multiply
    135,989.15x = 203,985.61 × 36,148.85
  4. Step 4: Simplify right side
    135,989.15x = 7,373,844,872.69
  5. Step 5: Solve for x
    x = 7,373,844,872.69/135,989.15
  6. Step 6: Final answer
    x = 54,223.78

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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.