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Finding the Fourth Proportional to 111,303.70, 166,955.55 and 75,874.30

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Solution

The fourth proportional to 111,303.70, 166,955.55 and 75,874.30 is: 113,811.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,303.70 : 166,955.55 = 75,874.30 : x
  2. Step 2: Convert to fraction form
    111,303.70/166,955.55 = 75,874.30/x
  3. Step 3: Cross multiply
    111,303.70x = 166,955.55 × 75,874.30
  4. Step 4: Simplify right side
    111,303.70x = 12,667,635,487.37
  5. Step 5: Solve for x
    x = 12,667,635,487.37/111,303.70
  6. Step 6: Final answer
    x = 113,811.45

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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.