Home / 118,431.81-163,435.91-63,983.97

Finding the Fourth Proportional to 118,431.81, 163,435.91 and 63,983.97

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Solution

The fourth proportional to 118,431.81, 163,435.91 and 63,983.97 is: 88,297.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,431.81 : 163,435.91 = 63,983.97 : x
  2. Step 2: Convert to fraction form
    118,431.81/163,435.91 = 63,983.97/x
  3. Step 3: Cross multiply
    118,431.81x = 163,435.91 × 63,983.97
  4. Step 4: Simplify right side
    118,431.81x = 10,457,278,042.44
  5. Step 5: Solve for x
    x = 10,457,278,042.44/118,431.81
  6. Step 6: Final answer
    x = 88,297.88

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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.