Home / 149,716.88-206,612.41-81,736.71

Finding the Fourth Proportional to 149,716.88, 206,612.41 and 81,736.71

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Solution

The fourth proportional to 149,716.88, 206,612.41 and 81,736.71 is: 112,798.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,716.88 : 206,612.41 = 81,736.71 : x
  2. Step 2: Convert to fraction form
    149,716.88/206,612.41 = 81,736.71/x
  3. Step 3: Cross multiply
    149,716.88x = 206,612.41 × 81,736.71
  4. Step 4: Simplify right side
    149,716.88x = 16,887,818,638.57
  5. Step 5: Solve for x
    x = 16,887,818,638.57/149,716.88
  6. Step 6: Final answer
    x = 112,798.36

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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.