Home / 181,663.56-272,156.36-131,621.36

Finding the Fourth Proportional to 181,663.56, 272,156.36 and 131,621.36

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Solution

The fourth proportional to 181,663.56, 272,156.36 and 131,621.36 is: 197,186.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,663.56 : 272,156.36 = 131,621.36 : x
  2. Step 2: Convert to fraction form
    181,663.56/272,156.36 = 131,621.36/x
  3. Step 3: Cross multiply
    181,663.56x = 272,156.36 × 131,621.36
  4. Step 4: Simplify right side
    181,663.56x = 35,821,588,216.96
  5. Step 5: Solve for x
    x = 35,821,588,216.96/181,663.56
  6. Step 6: Final answer
    x = 197,186.43

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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.