Home / 131,450.38-181,401.60-71,021.01

Finding the Fourth Proportional to 131,450.38, 181,401.60 and 71,021.01

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Solution

The fourth proportional to 131,450.38, 181,401.60 and 71,021.01 is: 98,009.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,450.38 : 181,401.60 = 71,021.01 : x
  2. Step 2: Convert to fraction form
    131,450.38/181,401.60 = 71,021.01/x
  3. Step 3: Cross multiply
    131,450.38x = 181,401.60 × 71,021.01
  4. Step 4: Simplify right side
    131,450.38x = 12,883,324,847.62
  5. Step 5: Solve for x
    x = 12,883,324,847.62/131,450.38
  6. Step 6: Final answer
    x = 98,009.03

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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.