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Finding the Fourth Proportional to 118,853.31, 163,923.08 and 101,007.39

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Solution

The fourth proportional to 118,853.31, 163,923.08 and 101,007.39 is: 139,309.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,853.31 : 163,923.08 = 101,007.39 : x
  2. Step 2: Convert to fraction form
    118,853.31/163,923.08 = 101,007.39/x
  3. Step 3: Cross multiply
    118,853.31x = 163,923.08 × 101,007.39
  4. Step 4: Simplify right side
    118,853.31x = 16,557,442,471.56
  5. Step 5: Solve for x
    x = 16,557,442,471.56/118,853.31
  6. Step 6: Final answer
    x = 139,309.90

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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.