Home / 131,889.30-181,906.81-113,523.67

Finding the Fourth Proportional to 131,889.30, 181,906.81 and 113,523.67

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Solution

The fourth proportional to 131,889.30, 181,906.81 and 113,523.67 is: 156,576.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,889.30 : 181,906.81 = 113,523.67 : x
  2. Step 2: Convert to fraction form
    131,889.30/181,906.81 = 113,523.67/x
  3. Step 3: Cross multiply
    131,889.30x = 181,906.81 × 113,523.67
  4. Step 4: Simplify right side
    131,889.30x = 20,650,727,759.66
  5. Step 5: Solve for x
    x = 20,650,727,759.66/131,889.30
  6. Step 6: Final answer
    x = 156,576.22

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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.