Home / 128,324.92-192,511.50-49,432.36

Finding the Fourth Proportional to 128,324.92, 192,511.50 and 49,432.36

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Solution

The fourth proportional to 128,324.92, 192,511.50 and 49,432.36 is: 74,157.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,324.92 : 192,511.50 = 49,432.36 : x
  2. Step 2: Convert to fraction form
    128,324.92/192,511.50 = 49,432.36/x
  3. Step 3: Cross multiply
    128,324.92x = 192,511.50 × 49,432.36
  4. Step 4: Simplify right side
    128,324.92x = 9,516,297,772.14
  5. Step 5: Solve for x
    x = 9,516,297,772.14/128,324.92
  6. Step 6: Final answer
    x = 74,157.83

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1.5x scale

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.