Home / 128,498.54-192,724.58-34,982.42

Finding the Fourth Proportional to 128,498.54, 192,724.58 and 34,982.42

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Solution

The fourth proportional to 128,498.54, 192,724.58 and 34,982.42 is: 52,467.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,498.54 : 192,724.58 = 34,982.42 : x
  2. Step 2: Convert to fraction form
    128,498.54/192,724.58 = 34,982.42/x
  3. Step 3: Cross multiply
    128,498.54x = 192,724.58 × 34,982.42
  4. Step 4: Simplify right side
    128,498.54x = 6,741,971,325.72
  5. Step 5: Solve for x
    x = 6,741,971,325.72/128,498.54
  6. Step 6: Final answer
    x = 52,467.30

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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.