Home / 181,761.89-272,679.75-76,580.86

Finding the Fourth Proportional to 181,761.89, 272,679.75 and 76,580.86

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Solution

The fourth proportional to 181,761.89, 272,679.75 and 76,580.86 is: 114,886.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,761.89 : 272,679.75 = 76,580.86 : x
  2. Step 2: Convert to fraction form
    181,761.89/272,679.75 = 76,580.86/x
  3. Step 3: Cross multiply
    181,761.89x = 272,679.75 × 76,580.86
  4. Step 4: Simplify right side
    181,761.89x = 20,882,049,589.16
  5. Step 5: Solve for x
    x = 20,882,049,589.16/181,761.89
  6. Step 6: Final answer
    x = 114,886.84

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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.