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Finding the Fourth Proportional to 159,959.21, 239,849.51 and 100,667.81

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Solution

The fourth proportional to 159,959.21, 239,849.51 and 100,667.81 is: 150,945.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,959.21 : 239,849.51 = 100,667.81 : x
  2. Step 2: Convert to fraction form
    159,959.21/239,849.51 = 100,667.81/x
  3. Step 3: Cross multiply
    159,959.21x = 239,849.51 × 100,667.81
  4. Step 4: Simplify right side
    159,959.21x = 24,145,124,997.56
  5. Step 5: Solve for x
    x = 24,145,124,997.56/159,959.21
  6. Step 6: Final answer
    x = 150,945.52

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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.