Home / 146,816.20-220,235.10-53,309.80

Finding the Fourth Proportional to 146,816.20, 220,235.10 and 53,309.80

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Solution

The fourth proportional to 146,816.20, 220,235.10 and 53,309.80 is: 79,968.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,816.20 : 220,235.10 = 53,309.80 : x
  2. Step 2: Convert to fraction form
    146,816.20/220,235.10 = 53,309.80/x
  3. Step 3: Cross multiply
    146,816.20x = 220,235.10 × 53,309.80
  4. Step 4: Simplify right side
    146,816.20x = 11,740,689,133.98
  5. Step 5: Solve for x
    x = 11,740,689,133.98/146,816.20
  6. Step 6: Final answer
    x = 79,968.62

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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.