Home / 139,916.52-209,936.61-73,340.73

Finding the Fourth Proportional to 139,916.52, 209,936.61 and 73,340.73

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Solution

The fourth proportional to 139,916.52, 209,936.61 and 73,340.73 is: 110,043.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,916.52 : 209,936.61 = 73,340.73 : x
  2. Step 2: Convert to fraction form
    139,916.52/209,936.61 = 73,340.73/x
  3. Step 3: Cross multiply
    139,916.52x = 209,936.61 × 73,340.73
  4. Step 4: Simplify right side
    139,916.52x = 15,396,904,231.13
  5. Step 5: Solve for x
    x = 15,396,904,231.13/139,916.52
  6. Step 6: Final answer
    x = 110,043.50

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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.