Home / 99,907.20-149,919.90-36,771.66

Finding the Fourth Proportional to 99,907.20, 149,919.90 and 36,771.66

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Solution

The fourth proportional to 99,907.20, 149,919.90 and 36,771.66 is: 55,179.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,907.20 : 149,919.90 = 36,771.66 : x
  2. Step 2: Convert to fraction form
    99,907.20/149,919.90 = 36,771.66/x
  3. Step 3: Cross multiply
    99,907.20x = 149,919.90 × 36,771.66
  4. Step 4: Simplify right side
    99,907.20x = 5,512,804,028.92
  5. Step 5: Solve for x
    x = 5,512,804,028.92/99,907.20
  6. Step 6: Final answer
    x = 55,179.25

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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.