Home / 111,211.20-166,816.80-110,174.40

Finding the Fourth Proportional to 111,211.20, 166,816.80 and 110,174.40

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Solution

The fourth proportional to 111,211.20, 166,816.80 and 110,174.40 is: 165,261.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,211.20 : 166,816.80 = 110,174.40 : x
  2. Step 2: Convert to fraction form
    111,211.20/166,816.80 = 110,174.40/x
  3. Step 3: Cross multiply
    111,211.20x = 166,816.80 × 110,174.40
  4. Step 4: Simplify right side
    111,211.20x = 18,378,940,849.92
  5. Step 5: Solve for x
    x = 18,378,940,849.92/111,211.20
  6. Step 6: Final answer
    x = 165,261.60

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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.