Home / 131,186.33-181,051.08-80,228.87

Finding the Fourth Proportional to 131,186.33, 181,051.08 and 80,228.87

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Solution

The fourth proportional to 131,186.33, 181,051.08 and 80,228.87 is: 110,724.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,186.33 : 181,051.08 = 80,228.87 : x
  2. Step 2: Convert to fraction form
    131,186.33/181,051.08 = 80,228.87/x
  3. Step 3: Cross multiply
    131,186.33x = 181,051.08 × 80,228.87
  4. Step 4: Simplify right side
    131,186.33x = 14,525,523,560.68
  5. Step 5: Solve for x
    x = 14,525,523,560.68/131,186.33
  6. Step 6: Final answer
    x = 110,724.37

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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.