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Finding the Fourth Proportional to 117,104.95, 161,604.87 and 63,389.80

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Solution

The fourth proportional to 117,104.95, 161,604.87 and 63,389.80 is: 87,477.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,104.95 : 161,604.87 = 63,389.80 : x
  2. Step 2: Convert to fraction form
    117,104.95/161,604.87 = 63,389.80/x
  3. Step 3: Cross multiply
    117,104.95x = 161,604.87 × 63,389.80
  4. Step 4: Simplify right side
    117,104.95x = 10,244,100,388.33
  5. Step 5: Solve for x
    x = 10,244,100,388.33/117,104.95
  6. Step 6: Final answer
    x = 87,477.95

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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.