Home / 203,723.74-305,587.13-77,329.91

Finding the Fourth Proportional to 203,723.74, 305,587.13 and 77,329.91

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Solution

The fourth proportional to 203,723.74, 305,587.13 and 77,329.91 is: 115,995.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,723.74 : 305,587.13 = 77,329.91 : x
  2. Step 2: Convert to fraction form
    203,723.74/305,587.13 = 77,329.91/x
  3. Step 3: Cross multiply
    203,723.74x = 305,587.13 × 77,329.91
  4. Step 4: Simplify right side
    203,723.74x = 23,631,025,260.06
  5. Step 5: Solve for x
    x = 23,631,025,260.06/203,723.74
  6. Step 6: Final answer
    x = 115,995.44

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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.