Home / 117,201.75-161,738.60-63,487.20

Finding the Fourth Proportional to 117,201.75, 161,738.60 and 63,487.20

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Solution

The fourth proportional to 117,201.75, 161,738.60 and 63,487.20 is: 87,612.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,201.75 : 161,738.60 = 63,487.20 : x
  2. Step 2: Convert to fraction form
    117,201.75/161,738.60 = 63,487.20/x
  3. Step 3: Cross multiply
    117,201.75x = 161,738.60 × 63,487.20
  4. Step 4: Simplify right side
    117,201.75x = 10,268,330,845.92
  5. Step 5: Solve for x
    x = 10,268,330,845.92/117,201.75
  6. Step 6: Final answer
    x = 87,612.44

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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.