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Finding the Fourth Proportional to 117,618.60, 162,310.86 and 63,902.40

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Solution

The fourth proportional to 117,618.60, 162,310.86 and 63,902.40 is: 88,183.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,618.60 : 162,310.86 = 63,902.40 : x
  2. Step 2: Convert to fraction form
    117,618.60/162,310.86 = 63,902.40/x
  3. Step 3: Cross multiply
    117,618.60x = 162,310.86 × 63,902.40
  4. Step 4: Simplify right side
    117,618.60x = 10,372,053,500.06
  5. Step 5: Solve for x
    x = 10,372,053,500.06/117,618.60
  6. Step 6: Final answer
    x = 88,183.79

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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.