Home / 110,356.10-165,364.05-82,143.80

Finding the Fourth Proportional to 110,356.10, 165,364.05 and 82,143.80

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Solution

The fourth proportional to 110,356.10, 165,364.05 and 82,143.80 is: 123,089.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,356.10 : 165,364.05 = 82,143.80 : x
  2. Step 2: Convert to fraction form
    110,356.10/165,364.05 = 82,143.80/x
  3. Step 3: Cross multiply
    110,356.10x = 165,364.05 × 82,143.80
  4. Step 4: Simplify right side
    110,356.10x = 13,583,631,450.39
  5. Step 5: Solve for x
    x = 13,583,631,450.39/110,356.10
  6. Step 6: Final answer
    x = 123,089.09

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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.