Home / 231,515.50-319,532.34-136,022.18

Finding the Fourth Proportional to 231,515.50, 319,532.34 and 136,022.18

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Solution

The fourth proportional to 231,515.50, 319,532.34 and 136,022.18 is: 187,734.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,515.50 : 319,532.34 = 136,022.18 : x
  2. Step 2: Convert to fraction form
    231,515.50/319,532.34 = 136,022.18/x
  3. Step 3: Cross multiply
    231,515.50x = 319,532.34 × 136,022.18
  4. Step 4: Simplify right side
    231,515.50x = 43,463,485,467.30
  5. Step 5: Solve for x
    x = 43,463,485,467.30/231,515.50
  6. Step 6: Final answer
    x = 187,734.67

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1.5x scale

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.