Home / 149,514.57-206,327.52-81,532.08

Finding the Fourth Proportional to 149,514.57, 206,327.52 and 81,532.08

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Solution

The fourth proportional to 149,514.57, 206,327.52 and 81,532.08 is: 112,512.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,514.57 : 206,327.52 = 81,532.08 : x
  2. Step 2: Convert to fraction form
    149,514.57/206,327.52 = 81,532.08/x
  3. Step 3: Cross multiply
    149,514.57x = 206,327.52 × 81,532.08
  4. Step 4: Simplify right side
    149,514.57x = 16,822,311,866.84
  5. Step 5: Solve for x
    x = 16,822,311,866.84/149,514.57
  6. Step 6: Final answer
    x = 112,512.86

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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.