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Finding the Fourth Proportional to 181,425.99, 272,045.70 and 81,500.48

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Solution

The fourth proportional to 181,425.99, 272,045.70 and 81,500.48 is: 122,208.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,425.99 : 272,045.70 = 81,500.48 : x
  2. Step 2: Convert to fraction form
    181,425.99/272,045.70 = 81,500.48/x
  3. Step 3: Cross multiply
    181,425.99x = 272,045.70 × 81,500.48
  4. Step 4: Simplify right side
    181,425.99x = 22,171,853,771.71
  5. Step 5: Solve for x
    x = 22,171,853,771.71/181,425.99
  6. Step 6: Final answer
    x = 122,208.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.