Home / 146,621.70-220,260.60-140,643.90

Finding the Fourth Proportional to 146,621.70, 220,260.60 and 140,643.90

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Solution

The fourth proportional to 146,621.70, 220,260.60 and 140,643.90 is: 211,280.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,621.70 : 220,260.60 = 140,643.90 : x
  2. Step 2: Convert to fraction form
    146,621.70/220,260.60 = 140,643.90/x
  3. Step 3: Cross multiply
    146,621.70x = 220,260.60 × 140,643.90
  4. Step 4: Simplify right side
    146,621.70x = 30,978,309,800.34
  5. Step 5: Solve for x
    x = 30,978,309,800.34/146,621.70
  6. Step 6: Final answer
    x = 211,280.53

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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.