Home / 115,568.06-159,499.75-66,508.64

Finding the Fourth Proportional to 115,568.06, 159,499.75 and 66,508.64

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Solution

The fourth proportional to 115,568.06, 159,499.75 and 66,508.64 is: 91,791.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,568.06 : 159,499.75 = 66,508.64 : x
  2. Step 2: Convert to fraction form
    115,568.06/159,499.75 = 66,508.64/x
  3. Step 3: Cross multiply
    115,568.06x = 159,499.75 × 66,508.64
  4. Step 4: Simplify right side
    115,568.06x = 10,608,111,211.90
  5. Step 5: Solve for x
    x = 10,608,111,211.90/115,568.06
  6. Step 6: Final answer
    x = 91,791.03

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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.