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Finding the Fourth Proportional to 117,635.62, 162,301.30 and 66,640.18

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Solution

The fourth proportional to 117,635.62, 162,301.30 and 66,640.18 is: 91,943.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,635.62 : 162,301.30 = 66,640.18 : x
  2. Step 2: Convert to fraction form
    117,635.62/162,301.30 = 66,640.18/x
  3. Step 3: Cross multiply
    117,635.62x = 162,301.30 × 66,640.18
  4. Step 4: Simplify right side
    117,635.62x = 10,815,787,846.23
  5. Step 5: Solve for x
    x = 10,815,787,846.23/117,635.62
  6. Step 6: Final answer
    x = 91,943.14

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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.