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Finding the Fourth Proportional to 181,983.80, 272,846.10 and 69,620.60

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Solution

The fourth proportional to 181,983.80, 272,846.10 and 69,620.60 is: 104,381.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,983.80 : 272,846.10 = 69,620.60 : x
  2. Step 2: Convert to fraction form
    181,983.80/272,846.10 = 69,620.60/x
  3. Step 3: Cross multiply
    181,983.80x = 272,846.10 × 69,620.60
  4. Step 4: Simplify right side
    181,983.80x = 18,995,709,189.66
  5. Step 5: Solve for x
    x = 18,995,709,189.66/181,983.80
  6. Step 6: Final answer
    x = 104,381.32

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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.