Home / 121,968.06-168,313.25-66,777.27

Finding the Fourth Proportional to 121,968.06, 168,313.25 and 66,777.27

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Solution

The fourth proportional to 121,968.06, 168,313.25 and 66,777.27 is: 92,151.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,968.06 : 168,313.25 = 66,777.27 : x
  2. Step 2: Convert to fraction form
    121,968.06/168,313.25 = 66,777.27/x
  3. Step 3: Cross multiply
    121,968.06x = 168,313.25 × 66,777.27
  4. Step 4: Simplify right side
    121,968.06x = 11,239,498,499.97
  5. Step 5: Solve for x
    x = 11,239,498,499.97/121,968.06
  6. Step 6: Final answer
    x = 92,151.17

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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.