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Finding the Fourth Proportional to 128,097.30, 192,155.14 and 36,908.97

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Solution

The fourth proportional to 128,097.30, 192,155.14 and 36,908.97 is: 55,366.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,097.30 : 192,155.14 = 36,908.97 : x
  2. Step 2: Convert to fraction form
    128,097.30/192,155.14 = 36,908.97/x
  3. Step 3: Cross multiply
    128,097.30x = 192,155.14 × 36,908.97
  4. Step 4: Simplify right side
    128,097.30x = 7,092,247,415.55
  5. Step 5: Solve for x
    x = 7,092,247,415.55/128,097.30
  6. Step 6: Final answer
    x = 55,366.10

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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.