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Finding the Fourth Proportional to 146,019.40, 218,942.70 and 76,035.40

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Solution

The fourth proportional to 146,019.40, 218,942.70 and 76,035.40 is: 114,008.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,019.40 : 218,942.70 = 76,035.40 : x
  2. Step 2: Convert to fraction form
    146,019.40/218,942.70 = 76,035.40/x
  3. Step 3: Cross multiply
    146,019.40x = 218,942.70 × 76,035.40
  4. Step 4: Simplify right side
    146,019.40x = 16,647,395,771.58
  5. Step 5: Solve for x
    x = 16,647,395,771.58/146,019.40
  6. Step 6: Final answer
    x = 114,008.11

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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.