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Finding the Fourth Proportional to 159,404.16, 238,901.12 and 80,341.44

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Solution

The fourth proportional to 159,404.16, 238,901.12 and 80,341.44 is: 120,408.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,404.16 : 238,901.12 = 80,341.44 : x
  2. Step 2: Convert to fraction form
    159,404.16/238,901.12 = 80,341.44/x
  3. Step 3: Cross multiply
    159,404.16x = 238,901.12 × 80,341.44
  4. Step 4: Simplify right side
    159,404.16x = 19,193,659,998.41
  5. Step 5: Solve for x
    x = 19,193,659,998.41/159,404.16
  6. Step 6: Final answer
    x = 120,408.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.