Home / 143,161.20-214,766.10-43,320.60

Finding the Fourth Proportional to 143,161.20, 214,766.10 and 43,320.60

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Solution

The fourth proportional to 143,161.20, 214,766.10 and 43,320.60 is: 64,988.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,161.20 : 214,766.10 = 43,320.60 : x
  2. Step 2: Convert to fraction form
    143,161.20/214,766.10 = 43,320.60/x
  3. Step 3: Cross multiply
    143,161.20x = 214,766.10 × 43,320.60
  4. Step 4: Simplify right side
    143,161.20x = 9,303,796,311.66
  5. Step 5: Solve for x
    x = 9,303,796,311.66/143,161.20
  6. Step 6: Final answer
    x = 64,988.25

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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.