Home / 106,519.81-146,996.77-58,121.72

Finding the Fourth Proportional to 106,519.81, 146,996.77 and 58,121.72

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Solution

The fourth proportional to 106,519.81, 146,996.77 and 58,121.72 is: 80,207.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,519.81 : 146,996.77 = 58,121.72 : x
  2. Step 2: Convert to fraction form
    106,519.81/146,996.77 = 58,121.72/x
  3. Step 3: Cross multiply
    106,519.81x = 146,996.77 × 58,121.72
  4. Step 4: Simplify right side
    106,519.81x = 8,543,705,106.84
  5. Step 5: Solve for x
    x = 8,543,705,106.84/106,519.81
  6. Step 6: Final answer
    x = 80,207.66

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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.