Home / 131,241.25-181,112.93-71,625.25

Finding the Fourth Proportional to 131,241.25, 181,112.93 and 71,625.25

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Solution

The fourth proportional to 131,241.25, 181,112.93 and 71,625.25 is: 98,842.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,241.25 : 181,112.93 = 71,625.25 : x
  2. Step 2: Convert to fraction form
    131,241.25/181,112.93 = 71,625.25/x
  3. Step 3: Cross multiply
    131,241.25x = 181,112.93 × 71,625.25
  4. Step 4: Simplify right side
    131,241.25x = 12,972,258,889.48
  5. Step 5: Solve for x
    x = 12,972,258,889.48/131,241.25
  6. Step 6: Final answer
    x = 98,842.85

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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.