Home / 131,621.96-181,638.34-74,273.44

Finding the Fourth Proportional to 131,621.96, 181,638.34 and 74,273.44

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Solution

The fourth proportional to 131,621.96, 181,638.34 and 74,273.44 is: 102,497.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,621.96 : 181,638.34 = 74,273.44 : x
  2. Step 2: Convert to fraction form
    131,621.96/181,638.34 = 74,273.44/x
  3. Step 3: Cross multiply
    131,621.96x = 181,638.34 × 74,273.44
  4. Step 4: Simplify right side
    131,621.96x = 13,490,904,347.69
  5. Step 5: Solve for x
    x = 13,490,904,347.69/131,621.96
  6. Step 6: Final answer
    x = 102,497.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.