Home / 143,177.78-197,411.79-123,761.69

Finding the Fourth Proportional to 143,177.78, 197,411.79 and 123,761.69

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Solution

The fourth proportional to 143,177.78, 197,411.79 and 123,761.69 is: 170,641.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,177.78 : 197,411.79 = 123,761.69 : x
  2. Step 2: Convert to fraction form
    143,177.78/197,411.79 = 123,761.69/x
  3. Step 3: Cross multiply
    143,177.78x = 197,411.79 × 123,761.69
  4. Step 4: Simplify right side
    143,177.78x = 24,432,016,756.33
  5. Step 5: Solve for x
    x = 24,432,016,756.33/143,177.78
  6. Step 6: Final answer
    x = 170,641.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.