Home / 181,398.72-272,190.24-81,538.80

Finding the Fourth Proportional to 181,398.72, 272,190.24 and 81,538.80

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Solution

The fourth proportional to 181,398.72, 272,190.24 and 81,538.80 is: 122,349.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,398.72 : 272,190.24 = 81,538.80 : x
  2. Step 2: Convert to fraction form
    181,398.72/272,190.24 = 81,538.80/x
  3. Step 3: Cross multiply
    181,398.72x = 272,190.24 × 81,538.80
  4. Step 4: Simplify right side
    181,398.72x = 22,194,065,541.31
  5. Step 5: Solve for x
    x = 22,194,065,541.31/181,398.72
  6. Step 6: Final answer
    x = 122,349.63

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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.