Home / 117,680.39-162,399.92-63,965.40

Finding the Fourth Proportional to 117,680.39, 162,399.92 and 63,965.40

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Solution

The fourth proportional to 117,680.39, 162,399.92 and 63,965.40 is: 88,272.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,680.39 : 162,399.92 = 63,965.40 : x
  2. Step 2: Convert to fraction form
    117,680.39/162,399.92 = 63,965.40/x
  3. Step 3: Cross multiply
    117,680.39x = 162,399.92 × 63,965.40
  4. Step 4: Simplify right side
    117,680.39x = 10,387,975,842.77
  5. Step 5: Solve for x
    x = 10,387,975,842.77/117,680.39
  6. Step 6: Final answer
    x = 88,272.79

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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.