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Finding the Fourth Proportional to 203,645.70, 281,026.86 and 113,000.94

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Solution

The fourth proportional to 203,645.70, 281,026.86 and 113,000.94 is: 155,938.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,645.70 : 281,026.86 = 113,000.94 : x
  2. Step 2: Convert to fraction form
    203,645.70/281,026.86 = 113,000.94/x
  3. Step 3: Cross multiply
    203,645.70x = 281,026.86 × 113,000.94
  4. Step 4: Simplify right side
    203,645.70x = 31,756,299,345.25
  5. Step 5: Solve for x
    x = 31,756,299,345.25/203,645.70
  6. Step 6: Final answer
    x = 155,938.96

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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.