Home / 143,321.45-214,982.18-36,705.20

Finding the Fourth Proportional to 143,321.45, 214,982.18 and 36,705.20

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Solution

The fourth proportional to 143,321.45, 214,982.18 and 36,705.20 is: 55,057.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,321.45 : 214,982.18 = 36,705.20 : x
  2. Step 2: Convert to fraction form
    143,321.45/214,982.18 = 36,705.20/x
  3. Step 3: Cross multiply
    143,321.45x = 214,982.18 × 36,705.20
  4. Step 4: Simplify right side
    143,321.45x = 7,890,963,913.34
  5. Step 5: Solve for x
    x = 7,890,963,913.34/143,321.45
  6. Step 6: Final answer
    x = 55,057.80

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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.