Home / 117,854.30-162,635.81-64,138.16

Finding the Fourth Proportional to 117,854.30, 162,635.81 and 64,138.16

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Solution

The fourth proportional to 117,854.30, 162,635.81 and 64,138.16 is: 88,508.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,854.30 : 162,635.81 = 64,138.16 : x
  2. Step 2: Convert to fraction form
    117,854.30/162,635.81 = 64,138.16/x
  3. Step 3: Cross multiply
    117,854.30x = 162,635.81 × 64,138.16
  4. Step 4: Simplify right side
    117,854.30x = 10,431,161,929.93
  5. Step 5: Solve for x
    x = 10,431,161,929.93/117,854.30
  6. Step 6: Final answer
    x = 88,508.96

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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.