Home / 77,003.24-115,550.94-70,736.36

Finding the Fourth Proportional to 77,003.24, 115,550.94 and 70,736.36

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Solution

The fourth proportional to 77,003.24, 115,550.94 and 70,736.36 is: 106,146.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,003.24 : 115,550.94 = 70,736.36 : x
  2. Step 2: Convert to fraction form
    77,003.24/115,550.94 = 70,736.36/x
  3. Step 3: Cross multiply
    77,003.24x = 115,550.94 × 70,736.36
  4. Step 4: Simplify right side
    77,003.24x = 8,173,652,890.18
  5. Step 5: Solve for x
    x = 8,173,652,890.18/77,003.24
  6. Step 6: Final answer
    x = 106,146.87

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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.