Home / 118,636.38-163,714.23-64,917.79

Finding the Fourth Proportional to 118,636.38, 163,714.23 and 64,917.79

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Solution

The fourth proportional to 118,636.38, 163,714.23 and 64,917.79 is: 89,584.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,636.38 : 163,714.23 = 64,917.79 : x
  2. Step 2: Convert to fraction form
    118,636.38/163,714.23 = 64,917.79/x
  3. Step 3: Cross multiply
    118,636.38x = 163,714.23 × 64,917.79
  4. Step 4: Simplify right side
    118,636.38x = 10,627,965,593.87
  5. Step 5: Solve for x
    x = 10,627,965,593.87/118,636.38
  6. Step 6: Final answer
    x = 89,584.37

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1.5x scale

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.