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Finding the Fourth Proportional to 181,772.48, 250,876.01 and 138,670.56

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Solution

The fourth proportional to 181,772.48, 250,876.01 and 138,670.56 is: 191,388.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,772.48 : 250,876.01 = 138,670.56 : x
  2. Step 2: Convert to fraction form
    181,772.48/250,876.01 = 138,670.56/x
  3. Step 3: Cross multiply
    181,772.48x = 250,876.01 × 138,670.56
  4. Step 4: Simplify right side
    181,772.48x = 34,789,117,143.94
  5. Step 5: Solve for x
    x = 34,789,117,143.94/181,772.48
  6. Step 6: Final answer
    x = 191,388.25

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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.