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Finding the Fourth Proportional to 111,158.80, 166,624.80 and 54,912.40

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Solution

The fourth proportional to 111,158.80, 166,624.80 and 54,912.40 is: 82,312.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,158.80 : 166,624.80 = 54,912.40 : x
  2. Step 2: Convert to fraction form
    111,158.80/166,624.80 = 54,912.40/x
  3. Step 3: Cross multiply
    111,158.80x = 166,624.80 × 54,912.40
  4. Step 4: Simplify right side
    111,158.80x = 9,149,767,667.52
  5. Step 5: Solve for x
    x = 9,149,767,667.52/111,158.80
  6. Step 6: Final answer
    x = 82,312.58

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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.