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Finding the Fourth Proportional to 159,849.69, 239,880.41 and 87,852.87

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Solution

The fourth proportional to 159,849.69, 239,880.41 and 87,852.87 is: 131,837.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,849.69 : 239,880.41 = 87,852.87 : x
  2. Step 2: Convert to fraction form
    159,849.69/239,880.41 = 87,852.87/x
  3. Step 3: Cross multiply
    159,849.69x = 239,880.41 × 87,852.87
  4. Step 4: Simplify right side
    159,849.69x = 21,074,182,475.28
  5. Step 5: Solve for x
    x = 21,074,182,475.28/159,849.69
  6. Step 6: Final answer
    x = 131,837.49

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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.