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Finding the Fourth Proportional to 146,771.60, 220,157.40 and 76,634.60

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Solution

The fourth proportional to 146,771.60, 220,157.40 and 76,634.60 is: 114,951.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,771.60 : 220,157.40 = 76,634.60 : x
  2. Step 2: Convert to fraction form
    146,771.60/220,157.40 = 76,634.60/x
  3. Step 3: Cross multiply
    146,771.60x = 220,157.40 × 76,634.60
  4. Step 4: Simplify right side
    146,771.60x = 16,871,674,286.04
  5. Step 5: Solve for x
    x = 16,871,674,286.04/146,771.60
  6. Step 6: Final answer
    x = 114,951.90

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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.