Home / 181,662.72-272,100.24-87,972

Finding the Fourth Proportional to 181,662.72, 272,100.24 and 87,972

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Solution

The fourth proportional to 181,662.72, 272,100.24 and 87,972 is: 131,767.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,662.72 : 272,100.24 = 87,972 : x
  2. Step 2: Convert to fraction form
    181,662.72/272,100.24 = 87,972/x
  3. Step 3: Cross multiply
    181,662.72x = 272,100.24 × 87,972
  4. Step 4: Simplify right side
    181,662.72x = 23,937,202,313.28
  5. Step 5: Solve for x
    x = 23,937,202,313.28/181,662.72
  6. Step 6: Final answer
    x = 131,767.28

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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.