Home / 137,310.80-205,933.91-77,365.28

Finding the Fourth Proportional to 137,310.80, 205,933.91 and 77,365.28

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Solution

The fourth proportional to 137,310.80, 205,933.91 and 77,365.28 is: 116,029.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,310.80 : 205,933.91 = 77,365.28 : x
  2. Step 2: Convert to fraction form
    137,310.80/205,933.91 = 77,365.28/x
  3. Step 3: Cross multiply
    137,310.80x = 205,933.91 × 77,365.28
  4. Step 4: Simplify right side
    137,310.80x = 15,932,134,736.65
  5. Step 5: Solve for x
    x = 15,932,134,736.65/137,310.80
  6. Step 6: Final answer
    x = 116,029.73

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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.