Home / 117,788.58-162,558.79-69,390.96

Finding the Fourth Proportional to 117,788.58, 162,558.79 and 69,390.96

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Solution

The fourth proportional to 117,788.58, 162,558.79 and 69,390.96 is: 95,765.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,788.58 : 162,558.79 = 69,390.96 : x
  2. Step 2: Convert to fraction form
    117,788.58/162,558.79 = 69,390.96/x
  3. Step 3: Cross multiply
    117,788.58x = 162,558.79 × 69,390.96
  4. Step 4: Simplify right side
    117,788.58x = 11,280,110,494.54
  5. Step 5: Solve for x
    x = 11,280,110,494.54/117,788.58
  6. Step 6: Final answer
    x = 95,765.74

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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.