Home / 117,856.44-162,528.81-79,181.64

Finding the Fourth Proportional to 117,856.44, 162,528.81 and 79,181.64

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Solution

The fourth proportional to 117,856.44, 162,528.81 and 79,181.64 is: 109,194.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,856.44 : 162,528.81 = 79,181.64 : x
  2. Step 2: Convert to fraction form
    117,856.44/162,528.81 = 79,181.64/x
  3. Step 3: Cross multiply
    117,856.44x = 162,528.81 × 79,181.64
  4. Step 4: Simplify right side
    117,856.44x = 12,869,297,723.05
  5. Step 5: Solve for x
    x = 12,869,297,723.05/117,856.44
  6. Step 6: Final answer
    x = 109,194.69

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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.