Home / 149,375.20-206,130-92,785.44

Finding the Fourth Proportional to 149,375.20, 206,130 and 92,785.44

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Solution

The fourth proportional to 149,375.20, 206,130 and 92,785.44 is: 128,039.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,375.20 : 206,130 = 92,785.44 : x
  2. Step 2: Convert to fraction form
    149,375.20/206,130 = 92,785.44/x
  3. Step 3: Cross multiply
    149,375.20x = 206,130 × 92,785.44
  4. Step 4: Simplify right side
    149,375.20x = 19,125,862,747.20
  5. Step 5: Solve for x
    x = 19,125,862,747.20/149,375.20
  6. Step 6: Final answer
    x = 128,039.08

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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.