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Finding the Fourth Proportional to 128,335.62, 192,500.16 and 34,838.94

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Solution

The fourth proportional to 128,335.62, 192,500.16 and 34,838.94 is: 52,257.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,335.62 : 192,500.16 = 34,838.94 : x
  2. Step 2: Convert to fraction form
    128,335.62/192,500.16 = 34,838.94/x
  3. Step 3: Cross multiply
    128,335.62x = 192,500.16 × 34,838.94
  4. Step 4: Simplify right side
    128,335.62x = 6,706,501,524.23
  5. Step 5: Solve for x
    x = 6,706,501,524.23/128,335.62
  6. Step 6: Final answer
    x = 52,257.52

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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.