Home / 181,961.13-251,111.64-105,480.54

Finding the Fourth Proportional to 181,961.13, 251,111.64 and 105,480.54

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Solution

The fourth proportional to 181,961.13, 251,111.64 and 105,480.54 is: 145,566.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,961.13 : 251,111.64 = 105,480.54 : x
  2. Step 2: Convert to fraction form
    181,961.13/251,111.64 = 105,480.54/x
  3. Step 3: Cross multiply
    181,961.13x = 251,111.64 × 105,480.54
  4. Step 4: Simplify right side
    181,961.13x = 26,487,391,387.49
  5. Step 5: Solve for x
    x = 26,487,391,387.49/181,961.13
  6. Step 6: Final answer
    x = 145,566.21

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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.