Home / 131,828.82-181,923.96-71,399.58

Finding the Fourth Proportional to 131,828.82, 181,923.96 and 71,399.58

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Solution

The fourth proportional to 131,828.82, 181,923.96 and 71,399.58 is: 98,531.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,828.82 : 181,923.96 = 71,399.58 : x
  2. Step 2: Convert to fraction form
    131,828.82/181,923.96 = 71,399.58/x
  3. Step 3: Cross multiply
    131,828.82x = 181,923.96 × 71,399.58
  4. Step 4: Simplify right side
    131,828.82x = 12,989,294,335.94
  5. Step 5: Solve for x
    x = 12,989,294,335.94/131,828.82
  6. Step 6: Final answer
    x = 98,531.52

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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.