Home / 117,854.17-162,635.64-64,138.04

Finding the Fourth Proportional to 117,854.17, 162,635.64 and 64,138.04

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Solution

The fourth proportional to 117,854.17, 162,635.64 and 64,138.04 is: 88,508.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,854.17 : 162,635.64 = 64,138.04 : x
  2. Step 2: Convert to fraction form
    117,854.17/162,635.64 = 64,138.04/x
  3. Step 3: Cross multiply
    117,854.17x = 162,635.64 × 64,138.04
  4. Step 4: Simplify right side
    117,854.17x = 10,431,131,183.75
  5. Step 5: Solve for x
    x = 10,431,131,183.75/117,854.17
  6. Step 6: Final answer
    x = 88,508.80

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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.