Home / 109,650.89-151,343.22-71,342.85

Finding the Fourth Proportional to 109,650.89, 151,343.22 and 71,342.85

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Solution

The fourth proportional to 109,650.89, 151,343.22 and 71,342.85 is: 98,469.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,650.89 : 151,343.22 = 71,342.85 : x
  2. Step 2: Convert to fraction form
    109,650.89/151,343.22 = 71,342.85/x
  3. Step 3: Cross multiply
    109,650.89x = 151,343.22 × 71,342.85
  4. Step 4: Simplify right side
    109,650.89x = 10,797,257,478.05
  5. Step 5: Solve for x
    x = 10,797,257,478.05/109,650.89
  6. Step 6: Final answer
    x = 98,469.40

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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.