Home / 133,618.32-200,148.66-80,140.77

Finding the Fourth Proportional to 133,618.32, 200,148.66 and 80,140.77

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Solution

The fourth proportional to 133,618.32, 200,148.66 and 80,140.77 is: 120,043.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,618.32 : 200,148.66 = 80,140.77 : x
  2. Step 2: Convert to fraction form
    133,618.32/200,148.66 = 80,140.77/x
  3. Step 3: Cross multiply
    133,618.32x = 200,148.66 × 80,140.77
  4. Step 4: Simplify right side
    133,618.32x = 16,040,067,726.87
  5. Step 5: Solve for x
    x = 16,040,067,726.87/133,618.32
  6. Step 6: Final answer
    x = 120,043.93

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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.