Home / 118,736.82-163,856.90-65,021.85

Finding the Fourth Proportional to 118,736.82, 163,856.90 and 65,021.85

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Solution

The fourth proportional to 118,736.82, 163,856.90 and 65,021.85 is: 89,730.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,736.82 : 163,856.90 = 65,021.85 : x
  2. Step 2: Convert to fraction form
    118,736.82/163,856.90 = 65,021.85/x
  3. Step 3: Cross multiply
    118,736.82x = 163,856.90 × 65,021.85
  4. Step 4: Simplify right side
    118,736.82x = 10,654,278,448.16
  5. Step 5: Solve for x
    x = 10,654,278,448.16/118,736.82
  6. Step 6: Final answer
    x = 89,730.20

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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.