Home / 149,675.39-206,552.13-81,691.13

Finding the Fourth Proportional to 149,675.39, 206,552.13 and 81,691.13

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Solution

The fourth proportional to 149,675.39, 206,552.13 and 81,691.13 is: 112,733.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,675.39 : 206,552.13 = 81,691.13 : x
  2. Step 2: Convert to fraction form
    149,675.39/206,552.13 = 81,691.13/x
  3. Step 3: Cross multiply
    149,675.39x = 206,552.13 × 81,691.13
  4. Step 4: Simplify right side
    149,675.39x = 16,873,477,113.65
  5. Step 5: Solve for x
    x = 16,873,477,113.65/149,675.39
  6. Step 6: Final answer
    x = 112,733.81

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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.