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Finding the Fourth Proportional to 139,158.97, 209,025.95 and 133,094.60

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Solution

The fourth proportional to 139,158.97, 209,025.95 and 133,094.60 is: 199,916.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,158.97 : 209,025.95 = 133,094.60 : x
  2. Step 2: Convert to fraction form
    139,158.97/209,025.95 = 133,094.60/x
  3. Step 3: Cross multiply
    139,158.97x = 209,025.95 × 133,094.60
  4. Step 4: Simplify right side
    139,158.97x = 27,820,223,494.27
  5. Step 5: Solve for x
    x = 27,820,223,494.27/139,158.97
  6. Step 6: Final answer
    x = 199,916.85

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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.