Home / 98,016.64-135,105.60-66,175.36

Finding the Fourth Proportional to 98,016.64, 135,105.60 and 66,175.36

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Solution

The fourth proportional to 98,016.64, 135,105.60 and 66,175.36 is: 91,215.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,016.64 : 135,105.60 = 66,175.36 : x
  2. Step 2: Convert to fraction form
    98,016.64/135,105.60 = 66,175.36/x
  3. Step 3: Cross multiply
    98,016.64x = 135,105.60 × 66,175.36
  4. Step 4: Simplify right side
    98,016.64x = 8,940,661,718.02
  5. Step 5: Solve for x
    x = 8,940,661,718.02/98,016.64
  6. Step 6: Final answer
    x = 91,215.75

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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.