Home / 115,109.20-158,858.22-69,791.32

Finding the Fourth Proportional to 115,109.20, 158,858.22 and 69,791.32

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Solution

The fourth proportional to 115,109.20, 158,858.22 and 69,791.32 is: 96,316.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,109.20 : 158,858.22 = 69,791.32 : x
  2. Step 2: Convert to fraction form
    115,109.20/158,858.22 = 69,791.32/x
  3. Step 3: Cross multiply
    115,109.20x = 158,858.22 × 69,791.32
  4. Step 4: Simplify right side
    115,109.20x = 11,086,924,866.65
  5. Step 5: Solve for x
    x = 11,086,924,866.65/115,109.20
  6. Step 6: Final answer
    x = 96,316.58

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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.