Home / 203,784.80-281,226.33-113,146.61

Finding the Fourth Proportional to 203,784.80, 281,226.33 and 113,146.61

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Solution

The fourth proportional to 203,784.80, 281,226.33 and 113,146.61 is: 156,144.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,784.80 : 281,226.33 = 113,146.61 : x
  2. Step 2: Convert to fraction form
    203,784.80/281,226.33 = 113,146.61/x
  3. Step 3: Cross multiply
    203,784.80x = 281,226.33 × 113,146.61
  4. Step 4: Simplify right side
    203,784.80x = 31,819,804,476.11
  5. Step 5: Solve for x
    x = 31,819,804,476.11/203,784.80
  6. Step 6: Final answer
    x = 156,144.15

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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.