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Finding the Fourth Proportional to 139,193.17, 192,087.08 and 75,530.97

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Solution

The fourth proportional to 139,193.17, 192,087.08 and 75,530.97 is: 104,233.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,193.17 : 192,087.08 = 75,530.97 : x
  2. Step 2: Convert to fraction form
    139,193.17/192,087.08 = 75,530.97/x
  3. Step 3: Cross multiply
    139,193.17x = 192,087.08 × 75,530.97
  4. Step 4: Simplify right side
    139,193.17x = 14,508,523,665.70
  5. Step 5: Solve for x
    x = 14,508,523,665.70/139,193.17
  6. Step 6: Final answer
    x = 104,233.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.