Home / 149,512.88-206,326.14-81,529.62

Finding the Fourth Proportional to 149,512.88, 206,326.14 and 81,529.62

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Solution

The fourth proportional to 149,512.88, 206,326.14 and 81,529.62 is: 112,509.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,512.88 : 206,326.14 = 81,529.62 : x
  2. Step 2: Convert to fraction form
    149,512.88/206,326.14 = 81,529.62/x
  3. Step 3: Cross multiply
    149,512.88x = 206,326.14 × 81,529.62
  4. Step 4: Simplify right side
    149,512.88x = 16,821,691,790.27
  5. Step 5: Solve for x
    x = 16,821,691,790.27/149,512.88
  6. Step 6: Final answer
    x = 112,509.98

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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.