Home / 181,619.69-272,426.80-81,709.33

Finding the Fourth Proportional to 181,619.69, 272,426.80 and 81,709.33

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Solution

The fourth proportional to 181,619.69, 272,426.80 and 81,709.33 is: 122,562.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,619.69 : 272,426.80 = 81,709.33 : x
  2. Step 2: Convert to fraction form
    181,619.69/272,426.80 = 81,709.33/x
  3. Step 3: Cross multiply
    181,619.69x = 272,426.80 × 81,709.33
  4. Step 4: Simplify right side
    181,619.69x = 22,259,810,416.70
  5. Step 5: Solve for x
    x = 22,259,810,416.70/181,619.69
  6. Step 6: Final answer
    x = 122,562.76

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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.