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Finding the Fourth Proportional to 128,324.98, 192,487.56 and 34,830.73

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Solution

The fourth proportional to 128,324.98, 192,487.56 and 34,830.73 is: 52,246.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,324.98 : 192,487.56 = 34,830.73 : x
  2. Step 2: Convert to fraction form
    128,324.98/192,487.56 = 34,830.73/x
  3. Step 3: Cross multiply
    128,324.98x = 192,487.56 × 34,830.73
  4. Step 4: Simplify right side
    128,324.98x = 6,704,482,230.72
  5. Step 5: Solve for x
    x = 6,704,482,230.72/128,324.98
  6. Step 6: Final answer
    x = 52,246.12

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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.