Home / 109,112.68-150,583.38-66,679.32

Finding the Fourth Proportional to 109,112.68, 150,583.38 and 66,679.32

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Solution

The fourth proportional to 109,112.68, 150,583.38 and 66,679.32 is: 92,022.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,112.68 : 150,583.38 = 66,679.32 : x
  2. Step 2: Convert to fraction form
    109,112.68/150,583.38 = 66,679.32/x
  3. Step 3: Cross multiply
    109,112.68x = 150,583.38 × 66,679.32
  4. Step 4: Simplify right side
    109,112.68x = 10,040,797,381.70
  5. Step 5: Solve for x
    x = 10,040,797,381.70/109,112.68
  6. Step 6: Final answer
    x = 92,022.28

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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.