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Finding the Fourth Proportional to 139,806.71, 192,871.87 and 94,468.15

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Solution

The fourth proportional to 139,806.71, 192,871.87 and 94,468.15 is: 130,324.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,806.71 : 192,871.87 = 94,468.15 : x
  2. Step 2: Convert to fraction form
    139,806.71/192,871.87 = 94,468.15/x
  3. Step 3: Cross multiply
    139,806.71x = 192,871.87 × 94,468.15
  4. Step 4: Simplify right side
    139,806.71x = 18,220,248,606.95
  5. Step 5: Solve for x
    x = 18,220,248,606.95/139,806.71
  6. Step 6: Final answer
    x = 130,324.57

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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.