Home / 181,974.90-251,126.99-100,298.64

Finding the Fourth Proportional to 181,974.90, 251,126.99 and 100,298.64

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Solution

The fourth proportional to 181,974.90, 251,126.99 and 100,298.64 is: 138,413.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,974.90 : 251,126.99 = 100,298.64 : x
  2. Step 2: Convert to fraction form
    181,974.90/251,126.99 = 100,298.64/x
  3. Step 3: Cross multiply
    181,974.90x = 251,126.99 × 100,298.64
  4. Step 4: Simplify right side
    181,974.90x = 25,187,695,564.29
  5. Step 5: Solve for x
    x = 25,187,695,564.29/181,974.90
  6. Step 6: Final answer
    x = 138,413.02

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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.