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Finding the Fourth Proportional to 137,370.37, 205,806.39 and 101,435.79

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Solution

The fourth proportional to 137,370.37, 205,806.39 and 101,435.79 is: 151,969.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,370.37 : 205,806.39 = 101,435.79 : x
  2. Step 2: Convert to fraction form
    137,370.37/205,806.39 = 101,435.79/x
  3. Step 3: Cross multiply
    137,370.37x = 205,806.39 × 101,435.79
  4. Step 4: Simplify right side
    137,370.37x = 20,876,133,756.70
  5. Step 5: Solve for x
    x = 20,876,133,756.70/137,370.37
  6. Step 6: Final answer
    x = 151,969.70

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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.