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Finding the Fourth Proportional to 181,267.20, 250,141.78 and 100,699.79

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Solution

The fourth proportional to 181,267.20, 250,141.78 and 100,699.79 is: 138,961.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,267.20 : 250,141.78 = 100,699.79 : x
  2. Step 2: Convert to fraction form
    181,267.20/250,141.78 = 100,699.79/x
  3. Step 3: Cross multiply
    181,267.20x = 250,141.78 × 100,699.79
  4. Step 4: Simplify right side
    181,267.20x = 25,189,222,962.02
  5. Step 5: Solve for x
    x = 25,189,222,962.02/181,267.20
  6. Step 6: Final answer
    x = 138,961.84

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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.