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Finding the Fourth Proportional to 117,296.16, 162,003.22 and 77,188.97

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Solution

The fourth proportional to 117,296.16, 162,003.22 and 77,188.97 is: 106,609.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,296.16 : 162,003.22 = 77,188.97 : x
  2. Step 2: Convert to fraction form
    117,296.16/162,003.22 = 77,188.97/x
  3. Step 3: Cross multiply
    117,296.16x = 162,003.22 × 77,188.97
  4. Step 4: Simplify right side
    117,296.16x = 12,504,861,688.48
  5. Step 5: Solve for x
    x = 12,504,861,688.48/117,296.16
  6. Step 6: Final answer
    x = 106,609.30

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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.