Home / 138,299.87-207,640.89-95,504.91

Finding the Fourth Proportional to 138,299.87, 207,640.89 and 95,504.91

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Solution

The fourth proportional to 138,299.87, 207,640.89 and 95,504.91 is: 143,389.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,299.87 : 207,640.89 = 95,504.91 : x
  2. Step 2: Convert to fraction form
    138,299.87/207,640.89 = 95,504.91/x
  3. Step 3: Cross multiply
    138,299.87x = 207,640.89 × 95,504.91
  4. Step 4: Simplify right side
    138,299.87x = 19,830,724,511.77
  5. Step 5: Solve for x
    x = 19,830,724,511.77/138,299.87
  6. Step 6: Final answer
    x = 143,389.33

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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.