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Finding the Fourth Proportional to 118,854.31, 163,924.46 and 101,008.39

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Solution

The fourth proportional to 118,854.31, 163,924.46 and 101,008.39 is: 139,311.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,854.31 : 163,924.46 = 101,008.39 : x
  2. Step 2: Convert to fraction form
    118,854.31/163,924.46 = 101,008.39/x
  3. Step 3: Cross multiply
    118,854.31x = 163,924.46 × 101,008.39
  4. Step 4: Simplify right side
    118,854.31x = 16,557,745,786.22
  5. Step 5: Solve for x
    x = 16,557,745,786.22/118,854.31
  6. Step 6: Final answer
    x = 139,311.28

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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.