Home / 117,621.72-162,299.70-69,873.84

Finding the Fourth Proportional to 117,621.72, 162,299.70 and 69,873.84

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Solution

The fourth proportional to 117,621.72, 162,299.70 and 69,873.84 is: 96,415.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,621.72 : 162,299.70 = 69,873.84 : x
  2. Step 2: Convert to fraction form
    117,621.72/162,299.70 = 69,873.84/x
  3. Step 3: Cross multiply
    117,621.72x = 162,299.70 × 69,873.84
  4. Step 4: Simplify right side
    117,621.72x = 11,340,503,269.85
  5. Step 5: Solve for x
    x = 11,340,503,269.85/117,621.72
  6. Step 6: Final answer
    x = 96,415.04

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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.