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Finding the Fourth Proportional to 133,325.76, 199,769.94 and 80,750.28

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Solution

The fourth proportional to 133,325.76, 199,769.94 and 80,750.28 is: 120,992.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,325.76 : 199,769.94 = 80,750.28 : x
  2. Step 2: Convert to fraction form
    133,325.76/199,769.94 = 80,750.28/x
  3. Step 3: Cross multiply
    133,325.76x = 199,769.94 × 80,750.28
  4. Step 4: Simplify right side
    133,325.76x = 16,131,478,590.58
  5. Step 5: Solve for x
    x = 16,131,478,590.58/133,325.76
  6. Step 6: Final answer
    x = 120,992.96

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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.