Home / 121,927.32-168,317.22-91,724.14

Finding the Fourth Proportional to 121,927.32, 168,317.22 and 91,724.14

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Solution

The fourth proportional to 121,927.32, 168,317.22 and 91,724.14 is: 126,622.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,927.32 : 168,317.22 = 91,724.14 : x
  2. Step 2: Convert to fraction form
    121,927.32/168,317.22 = 91,724.14/x
  3. Step 3: Cross multiply
    121,927.32x = 168,317.22 × 91,724.14
  4. Step 4: Simplify right side
    121,927.32x = 15,438,752,806.05
  5. Step 5: Solve for x
    x = 15,438,752,806.05/121,927.32
  6. Step 6: Final answer
    x = 126,622.59

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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.