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Finding the Fourth Proportional to 181,264.80, 250,145.30 and 100,699.84

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Solution

The fourth proportional to 181,264.80, 250,145.30 and 100,699.84 is: 138,965.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,264.80 : 250,145.30 = 100,699.84 : x
  2. Step 2: Convert to fraction form
    181,264.80/250,145.30 = 100,699.84/x
  3. Step 3: Cross multiply
    181,264.80x = 250,145.30 × 100,699.84
  4. Step 4: Simplify right side
    181,264.80x = 25,189,589,932.53
  5. Step 5: Solve for x
    x = 25,189,589,932.53/181,264.80
  6. Step 6: Final answer
    x = 138,965.70

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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.