Home / 112,115.03-154,557.99-88,200.18

Finding the Fourth Proportional to 112,115.03, 154,557.99 and 88,200.18

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Solution

The fourth proportional to 112,115.03, 154,557.99 and 88,200.18 is: 121,589.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,115.03 : 154,557.99 = 88,200.18 : x
  2. Step 2: Convert to fraction form
    112,115.03/154,557.99 = 88,200.18/x
  3. Step 3: Cross multiply
    112,115.03x = 154,557.99 × 88,200.18
  4. Step 4: Simplify right side
    112,115.03x = 13,632,042,538.44
  5. Step 5: Solve for x
    x = 13,632,042,538.44/112,115.03
  6. Step 6: Final answer
    x = 121,589.79

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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.