Home / 105,822.87-146,039.09-58,078.82

Finding the Fourth Proportional to 105,822.87, 146,039.09 and 58,078.82

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Solution

The fourth proportional to 105,822.87, 146,039.09 and 58,078.82 is: 80,150.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,822.87 : 146,039.09 = 58,078.82 : x
  2. Step 2: Convert to fraction form
    105,822.87/146,039.09 = 58,078.82/x
  3. Step 3: Cross multiply
    105,822.87x = 146,039.09 × 58,078.82
  4. Step 4: Simplify right side
    105,822.87x = 8,481,777,000.48
  5. Step 5: Solve for x
    x = 8,481,777,000.48/105,822.87
  6. Step 6: Final answer
    x = 80,150.70

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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.