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Finding the Fourth Proportional to 144,379.33, 216,146.67 and 84,223.87

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Solution

The fourth proportional to 144,379.33, 216,146.67 and 84,223.87 is: 126,089.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,379.33 : 216,146.67 = 84,223.87 : x
  2. Step 2: Convert to fraction form
    144,379.33/216,146.67 = 84,223.87/x
  3. Step 3: Cross multiply
    144,379.33x = 216,146.67 × 84,223.87
  4. Step 4: Simplify right side
    144,379.33x = 18,204,709,035.01
  5. Step 5: Solve for x
    x = 18,204,709,035.01/144,379.33
  6. Step 6: Final answer
    x = 126,089.44

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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.