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Finding the Fourth Proportional to 119,091.87, 178,660.89 and 40,211.64

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Solution

The fourth proportional to 119,091.87, 178,660.89 and 40,211.64 is: 60,325.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,091.87 : 178,660.89 = 40,211.64 : x
  2. Step 2: Convert to fraction form
    119,091.87/178,660.89 = 40,211.64/x
  3. Step 3: Cross multiply
    119,091.87x = 178,660.89 × 40,211.64
  4. Step 4: Simplify right side
    119,091.87x = 7,184,247,390.76
  5. Step 5: Solve for x
    x = 7,184,247,390.76/119,091.87
  6. Step 6: Final answer
    x = 60,325.25

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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.