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Finding the Fourth Proportional to 159,496.40, 239,278.92 and 79,577.34

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Solution

The fourth proportional to 159,496.40, 239,278.92 and 79,577.34 is: 119,383.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,496.40 : 239,278.92 = 79,577.34 : x
  2. Step 2: Convert to fraction form
    159,496.40/239,278.92 = 79,577.34/x
  3. Step 3: Cross multiply
    159,496.40x = 239,278.92 × 79,577.34
  4. Step 4: Simplify right side
    159,496.40x = 19,041,180,370.93
  5. Step 5: Solve for x
    x = 19,041,180,370.93/159,496.40
  6. Step 6: Final answer
    x = 119,383.14

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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.