Home / 203,724.85-281,127-113,076.49

Finding the Fourth Proportional to 203,724.85, 281,127 and 113,076.49

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Solution

The fourth proportional to 203,724.85, 281,127 and 113,076.49 is: 156,038.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,724.85 : 281,127 = 113,076.49 : x
  2. Step 2: Convert to fraction form
    203,724.85/281,127 = 113,076.49/x
  3. Step 3: Cross multiply
    203,724.85x = 281,127 × 113,076.49
  4. Step 4: Simplify right side
    203,724.85x = 31,788,854,404.23
  5. Step 5: Solve for x
    x = 31,788,854,404.23/203,724.85
  6. Step 6: Final answer
    x = 156,038.18

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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.