Home / 181,391.90-272,090.59-69,078.33

Finding the Fourth Proportional to 181,391.90, 272,090.59 and 69,078.33

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Solution

The fourth proportional to 181,391.90, 272,090.59 and 69,078.33 is: 103,618.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,391.90 : 272,090.59 = 69,078.33 : x
  2. Step 2: Convert to fraction form
    181,391.90/272,090.59 = 69,078.33/x
  3. Step 3: Cross multiply
    181,391.90x = 272,090.59 × 69,078.33
  4. Step 4: Simplify right side
    181,391.90x = 18,795,563,393.22
  5. Step 5: Solve for x
    x = 18,795,563,393.22/181,391.90
  6. Step 6: Final answer
    x = 103,618.54

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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.