Home / 131,161.36-181,003.24-71,546.64

Finding the Fourth Proportional to 131,161.36, 181,003.24 and 71,546.64

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Solution

The fourth proportional to 131,161.36, 181,003.24 and 71,546.64 is: 98,734.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,161.36 : 181,003.24 = 71,546.64 : x
  2. Step 2: Convert to fraction form
    131,161.36/181,003.24 = 71,546.64/x
  3. Step 3: Cross multiply
    131,161.36x = 181,003.24 × 71,546.64
  4. Step 4: Simplify right side
    131,161.36x = 12,950,173,651.11
  5. Step 5: Solve for x
    x = 12,950,173,651.11/131,161.36
  6. Step 6: Final answer
    x = 98,734.67

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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.