Home / 149,350.23-206,102.70-81,367

Finding the Fourth Proportional to 149,350.23, 206,102.70 and 81,367

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Solution

The fourth proportional to 149,350.23, 206,102.70 and 81,367 is: 112,286.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,350.23 : 206,102.70 = 81,367 : x
  2. Step 2: Convert to fraction form
    149,350.23/206,102.70 = 81,367/x
  3. Step 3: Cross multiply
    149,350.23x = 206,102.70 × 81,367
  4. Step 4: Simplify right side
    149,350.23x = 16,769,958,390.90
  5. Step 5: Solve for x
    x = 16,769,958,390.90/149,350.23
  6. Step 6: Final answer
    x = 112,286.12

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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.