Home / 143,481.48-215,117.73-67,553.70

Finding the Fourth Proportional to 143,481.48, 215,117.73 and 67,553.70

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Solution

The fourth proportional to 143,481.48, 215,117.73 and 67,553.70 is: 101,281.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,481.48 : 215,117.73 = 67,553.70 : x
  2. Step 2: Convert to fraction form
    143,481.48/215,117.73 = 67,553.70/x
  3. Step 3: Cross multiply
    143,481.48x = 215,117.73 × 67,553.70
  4. Step 4: Simplify right side
    143,481.48x = 14,531,998,597.10
  5. Step 5: Solve for x
    x = 14,531,998,597.10/143,481.48
  6. Step 6: Final answer
    x = 101,281.35

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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.