Home / 100,016.02-138,022.10-54,694.04

Finding the Fourth Proportional to 100,016.02, 138,022.10 and 54,694.04

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Solution

The fourth proportional to 100,016.02, 138,022.10 and 54,694.04 is: 75,477.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,016.02 : 138,022.10 = 54,694.04 : x
  2. Step 2: Convert to fraction form
    100,016.02/138,022.10 = 54,694.04/x
  3. Step 3: Cross multiply
    100,016.02x = 138,022.10 × 54,694.04
  4. Step 4: Simplify right side
    100,016.02x = 7,548,986,258.28
  5. Step 5: Solve for x
    x = 7,548,986,258.28/100,016.02
  6. Step 6: Final answer
    x = 75,477.77

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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.