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Finding the Fourth Proportional to 181,287.96, 250,177.64 and 100,713.41

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Solution

The fourth proportional to 181,287.96, 250,177.64 and 100,713.41 is: 138,984.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,287.96 : 250,177.64 = 100,713.41 : x
  2. Step 2: Convert to fraction form
    181,287.96/250,177.64 = 100,713.41/x
  3. Step 3: Cross multiply
    181,287.96x = 250,177.64 × 100,713.41
  4. Step 4: Simplify right side
    181,287.96x = 25,196,241,475.70
  5. Step 5: Solve for x
    x = 25,196,241,475.70/181,287.96
  6. Step 6: Final answer
    x = 138,984.64

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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.