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Finding the Fourth Proportional to 117,615.92, 162,310.08 and 63,900.90

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Solution

The fourth proportional to 117,615.92, 162,310.08 and 63,900.90 is: 88,183.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,615.92 : 162,310.08 = 63,900.90 : x
  2. Step 2: Convert to fraction form
    117,615.92/162,310.08 = 63,900.90/x
  3. Step 3: Cross multiply
    117,615.92x = 162,310.08 × 63,900.90
  4. Step 4: Simplify right side
    117,615.92x = 10,371,760,191.07
  5. Step 5: Solve for x
    x = 10,371,760,191.07/117,615.92
  6. Step 6: Final answer
    x = 88,183.30

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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.