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Finding the Fourth Proportional to 166,626.81, 229,944.04 and 90,145.67

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Solution

The fourth proportional to 166,626.81, 229,944.04 and 90,145.67 is: 124,400.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,626.81 : 229,944.04 = 90,145.67 : x
  2. Step 2: Convert to fraction form
    166,626.81/229,944.04 = 90,145.67/x
  3. Step 3: Cross multiply
    166,626.81x = 229,944.04 × 90,145.67
  4. Step 4: Simplify right side
    166,626.81x = 20,728,458,173.22
  5. Step 5: Solve for x
    x = 20,728,458,173.22/166,626.81
  6. Step 6: Final answer
    x = 124,400.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.