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Finding the Fourth Proportional to 146,751.60, 220,127.40 and 76,614.60

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Solution

The fourth proportional to 146,751.60, 220,127.40 and 76,614.60 is: 114,921.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,751.60 : 220,127.40 = 76,614.60 : x
  2. Step 2: Convert to fraction form
    146,751.60/220,127.40 = 76,614.60/x
  3. Step 3: Cross multiply
    146,751.60x = 220,127.40 × 76,614.60
  4. Step 4: Simplify right side
    146,751.60x = 16,864,972,700.04
  5. Step 5: Solve for x
    x = 16,864,972,700.04/146,751.60
  6. Step 6: Final answer
    x = 114,921.90

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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.