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Finding the Fourth Proportional to 181,261.98, 250,136.37 and 100,687.50

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Solution

The fourth proportional to 181,261.98, 250,136.37 and 100,687.50 is: 138,945.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,261.98 : 250,136.37 = 100,687.50 : x
  2. Step 2: Convert to fraction form
    181,261.98/250,136.37 = 100,687.50/x
  3. Step 3: Cross multiply
    181,261.98x = 250,136.37 × 100,687.50
  4. Step 4: Simplify right side
    181,261.98x = 25,185,605,754.38
  5. Step 5: Solve for x
    x = 25,185,605,754.38/181,261.98
  6. Step 6: Final answer
    x = 138,945.88

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1.5x scale

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.