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Finding the Fourth Proportional to 118,793.72, 163,935.36 and 65,080.67

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Solution

The fourth proportional to 118,793.72, 163,935.36 and 65,080.67 is: 89,811.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,793.72 : 163,935.36 = 65,080.67 : x
  2. Step 2: Convert to fraction form
    118,793.72/163,935.36 = 65,080.67/x
  3. Step 3: Cross multiply
    118,793.72x = 163,935.36 × 65,080.67
  4. Step 4: Simplify right side
    118,793.72x = 10,669,022,245.81
  5. Step 5: Solve for x
    x = 10,669,022,245.81/118,793.72
  6. Step 6: Final answer
    x = 89,811.33

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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.