Home / 181,636.43-272,416.77-69,291.45

Finding the Fourth Proportional to 181,636.43, 272,416.77 and 69,291.45

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Solution

The fourth proportional to 181,636.43, 272,416.77 and 69,291.45 is: 103,922.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,636.43 : 272,416.77 = 69,291.45 : x
  2. Step 2: Convert to fraction form
    181,636.43/272,416.77 = 69,291.45/x
  3. Step 3: Cross multiply
    181,636.43x = 272,416.77 × 69,291.45
  4. Step 4: Simplify right side
    181,636.43x = 18,876,152,997.62
  5. Step 5: Solve for x
    x = 18,876,152,997.62/181,636.43
  6. Step 6: Final answer
    x = 103,922.73

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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.