Home / 128,229.40-192,343.02-34,734.52

Finding the Fourth Proportional to 128,229.40, 192,343.02 and 34,734.52

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Solution

The fourth proportional to 128,229.40, 192,343.02 and 34,734.52 is: 52,101.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,229.40 : 192,343.02 = 34,734.52 : x
  2. Step 2: Convert to fraction form
    128,229.40/192,343.02 = 34,734.52/x
  3. Step 3: Cross multiply
    128,229.40x = 192,343.02 × 34,734.52
  4. Step 4: Simplify right side
    128,229.40x = 6,680,942,475.05
  5. Step 5: Solve for x
    x = 6,680,942,475.05/128,229.40
  6. Step 6: Final answer
    x = 52,101.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.