Home / 149,785.16-206,704.94-85,251.24

Finding the Fourth Proportional to 149,785.16, 206,704.94 and 85,251.24

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Solution

The fourth proportional to 149,785.16, 206,704.94 and 85,251.24 is: 117,647.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,785.16 : 206,704.94 = 85,251.24 : x
  2. Step 2: Convert to fraction form
    149,785.16/206,704.94 = 85,251.24/x
  3. Step 3: Cross multiply
    149,785.16x = 206,704.94 × 85,251.24
  4. Step 4: Simplify right side
    149,785.16x = 17,621,852,022.87
  5. Step 5: Solve for x
    x = 17,621,852,022.87/149,785.16
  6. Step 6: Final answer
    x = 117,647.52

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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.