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Finding the Fourth Proportional to 181,343.16, 272,103.84 and 81,573.84

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Solution

The fourth proportional to 181,343.16, 272,103.84 and 81,573.84 is: 122,400.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,343.16 : 272,103.84 = 81,573.84 : x
  2. Step 2: Convert to fraction form
    181,343.16/272,103.84 = 81,573.84/x
  3. Step 3: Cross multiply
    181,343.16x = 272,103.84 × 81,573.84
  4. Step 4: Simplify right side
    181,343.16x = 22,196,555,107.55
  5. Step 5: Solve for x
    x = 22,196,555,107.55/181,343.16
  6. Step 6: Final answer
    x = 122,400.84

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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.