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Finding the Fourth Proportional to 162,408.70, 243,526.65 and 68,808.70

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Solution

The fourth proportional to 162,408.70, 243,526.65 and 68,808.70 is: 103,176.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,408.70 : 243,526.65 = 68,808.70 : x
  2. Step 2: Convert to fraction form
    162,408.70/243,526.65 = 68,808.70/x
  3. Step 3: Cross multiply
    162,408.70x = 243,526.65 × 68,808.70
  4. Step 4: Simplify right side
    162,408.70x = 16,756,752,201.86
  5. Step 5: Solve for x
    x = 16,756,752,201.86/162,408.70
  6. Step 6: Final answer
    x = 103,176.44

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.