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Finding the Fourth Proportional to 162,003.70, 242,919.15 and 68,403.70

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Solution

The fourth proportional to 162,003.70, 242,919.15 and 68,403.70 is: 102,569.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,003.70 : 242,919.15 = 68,403.70 : x
  2. Step 2: Convert to fraction form
    162,003.70/242,919.15 = 68,403.70/x
  3. Step 3: Cross multiply
    162,003.70x = 242,919.15 × 68,403.70
  4. Step 4: Simplify right side
    162,003.70x = 16,616,568,660.86
  5. Step 5: Solve for x
    x = 16,616,568,660.86/162,003.70
  6. Step 6: Final answer
    x = 102,569.07

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1.5x scale

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.