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Finding the Fourth Proportional to 181,229.88, 250,090.28 and 100,662.55

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Solution

The fourth proportional to 181,229.88, 250,090.28 and 100,662.55 is: 138,910.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,229.88 : 250,090.28 = 100,662.55 : x
  2. Step 2: Convert to fraction form
    181,229.88/250,090.28 = 100,662.55/x
  3. Step 3: Cross multiply
    181,229.88x = 250,090.28 × 100,662.55
  4. Step 4: Simplify right side
    181,229.88x = 25,174,725,130.19
  5. Step 5: Solve for x
    x = 25,174,725,130.19/181,229.88
  6. Step 6: Final answer
    x = 138,910.45

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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.