Home / 111,008.36-153,209.60-82,517.20

Finding the Fourth Proportional to 111,008.36, 153,209.60 and 82,517.20

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Solution

The fourth proportional to 111,008.36, 153,209.60 and 82,517.20 is: 113,887.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,008.36 : 153,209.60 = 82,517.20 : x
  2. Step 2: Convert to fraction form
    111,008.36/153,209.60 = 82,517.20/x
  3. Step 3: Cross multiply
    111,008.36x = 153,209.60 × 82,517.20
  4. Step 4: Simplify right side
    111,008.36x = 12,642,427,205.12
  5. Step 5: Solve for x
    x = 12,642,427,205.12/111,008.36
  6. Step 6: Final answer
    x = 113,887.16

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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.