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Finding the Fourth Proportional to 111,465.24, 166,912.38 and 61,489.78

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Solution

The fourth proportional to 111,465.24, 166,912.38 and 61,489.78 is: 92,077.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,465.24 : 166,912.38 = 61,489.78 : x
  2. Step 2: Convert to fraction form
    111,465.24/166,912.38 = 61,489.78/x
  3. Step 3: Cross multiply
    111,465.24x = 166,912.38 × 61,489.78
  4. Step 4: Simplify right side
    111,465.24x = 10,263,405,525.48
  5. Step 5: Solve for x
    x = 10,263,405,525.48/111,465.24
  6. Step 6: Final answer
    x = 92,077.19

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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.