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Finding the Fourth Proportional to 159,462.99, 239,342.11 and 80,632.58

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Solution

The fourth proportional to 159,462.99, 239,342.11 and 80,632.58 is: 121,023.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,462.99 : 239,342.11 = 80,632.58 : x
  2. Step 2: Convert to fraction form
    159,462.99/239,342.11 = 80,632.58/x
  3. Step 3: Cross multiply
    159,462.99x = 239,342.11 × 80,632.58
  4. Step 4: Simplify right side
    159,462.99x = 19,298,771,435.17
  5. Step 5: Solve for x
    x = 19,298,771,435.17/159,462.99
  6. Step 6: Final answer
    x = 121,023.51

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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.