Home / 115,046.37-158,712.75-67,278.66

Finding the Fourth Proportional to 115,046.37, 158,712.75 and 67,278.66

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Solution

The fourth proportional to 115,046.37, 158,712.75 and 67,278.66 is: 92,814.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,046.37 : 158,712.75 = 67,278.66 : x
  2. Step 2: Convert to fraction form
    115,046.37/158,712.75 = 67,278.66/x
  3. Step 3: Cross multiply
    115,046.37x = 158,712.75 × 67,278.66
  4. Step 4: Simplify right side
    115,046.37x = 10,677,981,144.92
  5. Step 5: Solve for x
    x = 10,677,981,144.92/115,046.37
  6. Step 6: Final answer
    x = 92,814.59

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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.