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Finding the Fourth Proportional to 168,420.28, 252,411.04 and 68,463.71

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Solution

The fourth proportional to 168,420.28, 252,411.04 and 68,463.71 is: 102,606.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,420.28 : 252,411.04 = 68,463.71 : x
  2. Step 2: Convert to fraction form
    168,420.28/252,411.04 = 68,463.71/x
  3. Step 3: Cross multiply
    168,420.28x = 252,411.04 × 68,463.71
  4. Step 4: Simplify right side
    168,420.28x = 17,280,995,901.04
  5. Step 5: Solve for x
    x = 17,280,995,901.04/168,420.28
  6. Step 6: Final answer
    x = 102,606.39

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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.