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Finding the Fourth Proportional to 143,355.58, 214,891.33 and 67,318.00

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Solution

The fourth proportional to 143,355.58, 214,891.33 and 67,318.00 is: 100,910.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,355.58 : 214,891.33 = 67,318.00 : x
  2. Step 2: Convert to fraction form
    143,355.58/214,891.33 = 67,318.00/x
  3. Step 3: Cross multiply
    143,355.58x = 214,891.33 × 67,318.00
  4. Step 4: Simplify right side
    143,355.58x = 14,466,054,905.70
  5. Step 5: Solve for x
    x = 14,466,054,905.70/143,355.58
  6. Step 6: Final answer
    x = 100,910.30

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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.