Home / 117,080.64-161,585.28-66,789.36

Finding the Fourth Proportional to 117,080.64, 161,585.28 and 66,789.36

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Solution

The fourth proportional to 117,080.64, 161,585.28 and 66,789.36 is: 92,177.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,080.64 : 161,585.28 = 66,789.36 : x
  2. Step 2: Convert to fraction form
    117,080.64/161,585.28 = 66,789.36/x
  3. Step 3: Cross multiply
    117,080.64x = 161,585.28 × 66,789.36
  4. Step 4: Simplify right side
    117,080.64x = 10,792,177,436.62
  5. Step 5: Solve for x
    x = 10,792,177,436.62/117,080.64
  6. Step 6: Final answer
    x = 92,177.30

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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.