Home / 117,664.56-162,378.16-63,949.70

Finding the Fourth Proportional to 117,664.56, 162,378.16 and 63,949.70

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Solution

The fourth proportional to 117,664.56, 162,378.16 and 63,949.70 is: 88,251.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,664.56 : 162,378.16 = 63,949.70 : x
  2. Step 2: Convert to fraction form
    117,664.56/162,378.16 = 63,949.70/x
  3. Step 3: Cross multiply
    117,664.56x = 162,378.16 × 63,949.70
  4. Step 4: Simplify right side
    117,664.56x = 10,384,034,864.62
  5. Step 5: Solve for x
    x = 10,384,034,864.62/117,664.56
  6. Step 6: Final answer
    x = 88,251.17

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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.