Home / 109,144.62-150,611.46-61,388.74

Finding the Fourth Proportional to 109,144.62, 150,611.46 and 61,388.74

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Solution

The fourth proportional to 109,144.62, 150,611.46 and 61,388.74 is: 84,711.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,144.62 : 150,611.46 = 61,388.74 : x
  2. Step 2: Convert to fraction form
    109,144.62/150,611.46 = 61,388.74/x
  3. Step 3: Cross multiply
    109,144.62x = 150,611.46 × 61,388.74
  4. Step 4: Simplify right side
    109,144.62x = 9,245,847,758.96
  5. Step 5: Solve for x
    x = 9,245,847,758.96/109,144.62
  6. Step 6: Final answer
    x = 84,711.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.