Home / 138,299.35-207,485.95-49,561.83

Finding the Fourth Proportional to 138,299.35, 207,485.95 and 49,561.83

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Solution

The fourth proportional to 138,299.35, 207,485.95 and 49,561.83 is: 74,355.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,299.35 : 207,485.95 = 49,561.83 : x
  2. Step 2: Convert to fraction form
    138,299.35/207,485.95 = 49,561.83/x
  3. Step 3: Cross multiply
    138,299.35x = 207,485.95 × 49,561.83
  4. Step 4: Simplify right side
    138,299.35x = 10,283,382,627.37
  5. Step 5: Solve for x
    x = 10,283,382,627.37/138,299.35
  6. Step 6: Final answer
    x = 74,355.97

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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.