Home / 117,664.55-162,390.83-69,917.88

Finding the Fourth Proportional to 117,664.55, 162,390.83 and 69,917.88

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Solution

The fourth proportional to 117,664.55, 162,390.83 and 69,917.88 is: 96,494.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,664.55 : 162,390.83 = 69,917.88 : x
  2. Step 2: Convert to fraction form
    117,664.55/162,390.83 = 69,917.88/x
  3. Step 3: Cross multiply
    117,664.55x = 162,390.83 × 69,917.88
  4. Step 4: Simplify right side
    117,664.55x = 11,354,022,824.42
  5. Step 5: Solve for x
    x = 11,354,022,824.42/117,664.55
  6. Step 6: Final answer
    x = 96,494.85

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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.