Home / 112,028.27-154,550.43-66,680.82

Finding the Fourth Proportional to 112,028.27, 154,550.43 and 66,680.82

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Solution

The fourth proportional to 112,028.27, 154,550.43 and 66,680.82 is: 91,990.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,028.27 : 154,550.43 = 66,680.82 : x
  2. Step 2: Convert to fraction form
    112,028.27/154,550.43 = 66,680.82/x
  3. Step 3: Cross multiply
    112,028.27x = 154,550.43 × 66,680.82
  4. Step 4: Simplify right side
    112,028.27x = 10,305,549,403.75
  5. Step 5: Solve for x
    x = 10,305,549,403.75/112,028.27
  6. Step 6: Final answer
    x = 91,990.62

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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.