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Finding the Fourth Proportional to 162,408.48, 243,632.52 and 68,882.64

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Solution

The fourth proportional to 162,408.48, 243,632.52 and 68,882.64 is: 103,332.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,408.48 : 243,632.52 = 68,882.64 : x
  2. Step 2: Convert to fraction form
    162,408.48/243,632.52 = 68,882.64/x
  3. Step 3: Cross multiply
    162,408.48x = 243,632.52 × 68,882.64
  4. Step 4: Simplify right side
    162,408.48x = 16,782,051,167.45
  5. Step 5: Solve for x
    x = 16,782,051,167.45/162,408.48
  6. Step 6: Final answer
    x = 103,332.36

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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.