Home / 181,687.70-272,531.64-81,731.12

Finding the Fourth Proportional to 181,687.70, 272,531.64 and 81,731.12

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Solution

The fourth proportional to 181,687.70, 272,531.64 and 81,731.12 is: 122,596.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,687.70 : 272,531.64 = 81,731.12 : x
  2. Step 2: Convert to fraction form
    181,687.70/272,531.64 = 81,731.12/x
  3. Step 3: Cross multiply
    181,687.70x = 272,531.64 × 81,731.12
  4. Step 4: Simplify right side
    181,687.70x = 22,274,316,172.64
  5. Step 5: Solve for x
    x = 22,274,316,172.64/181,687.70
  6. Step 6: Final answer
    x = 122,596.72

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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.