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Finding the Fourth Proportional to 162,494.49, 243,846.99 and 87,666.29

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Solution

The fourth proportional to 162,494.49, 243,846.99 and 87,666.29 is: 131,556.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,494.49 : 243,846.99 = 87,666.29 : x
  2. Step 2: Convert to fraction form
    162,494.49/243,846.99 = 87,666.29/x
  3. Step 3: Cross multiply
    162,494.49x = 243,846.99 × 87,666.29
  4. Step 4: Simplify right side
    162,494.49x = 21,377,160,940.97
  5. Step 5: Solve for x
    x = 21,377,160,940.97/162,494.49
  6. Step 6: Final answer
    x = 131,556.22

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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.