Home / 100,919.80-151,412.10-44,738.20

Finding the Fourth Proportional to 100,919.80, 151,412.10 and 44,738.20

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Solution

The fourth proportional to 100,919.80, 151,412.10 and 44,738.20 is: 67,121.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,919.80 : 151,412.10 = 44,738.20 : x
  2. Step 2: Convert to fraction form
    100,919.80/151,412.10 = 44,738.20/x
  3. Step 3: Cross multiply
    100,919.80x = 151,412.10 × 44,738.20
  4. Step 4: Simplify right side
    100,919.80x = 6,773,904,812.22
  5. Step 5: Solve for x
    x = 6,773,904,812.22/100,919.80
  6. Step 6: Final answer
    x = 67,121.66

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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.