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Finding the Fourth Proportional to 119,887.32, 165,310.33 and 98,015.40

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Solution

The fourth proportional to 119,887.32, 165,310.33 and 98,015.40 is: 135,151.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,887.32 : 165,310.33 = 98,015.40 : x
  2. Step 2: Convert to fraction form
    119,887.32/165,310.33 = 98,015.40/x
  3. Step 3: Cross multiply
    119,887.32x = 165,310.33 × 98,015.40
  4. Step 4: Simplify right side
    119,887.32x = 16,202,958,786.60
  5. Step 5: Solve for x
    x = 16,202,958,786.60/119,887.32
  6. Step 6: Final answer
    x = 135,151.56

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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.