Home / 110,388.10-165,412.05-82,175.80

Finding the Fourth Proportional to 110,388.10, 165,412.05 and 82,175.80

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Solution

The fourth proportional to 110,388.10, 165,412.05 and 82,175.80 is: 123,137.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,388.10 : 165,412.05 = 82,175.80 : x
  2. Step 2: Convert to fraction form
    110,388.10/165,412.05 = 82,175.80/x
  3. Step 3: Cross multiply
    110,388.10x = 165,412.05 × 82,175.80
  4. Step 4: Simplify right side
    110,388.10x = 13,592,867,538.39
  5. Step 5: Solve for x
    x = 13,592,867,538.39/110,388.10
  6. Step 6: Final answer
    x = 123,137.07

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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.