Home / 108,529.05-162,738.90-64,169.40

Finding the Fourth Proportional to 108,529.05, 162,738.90 and 64,169.40

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Solution

The fourth proportional to 108,529.05, 162,738.90 and 64,169.40 is: 96,221.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,529.05 : 162,738.90 = 64,169.40 : x
  2. Step 2: Convert to fraction form
    108,529.05/162,738.90 = 64,169.40/x
  3. Step 3: Cross multiply
    108,529.05x = 162,738.90 × 64,169.40
  4. Step 4: Simplify right side
    108,529.05x = 10,442,857,569.66
  5. Step 5: Solve for x
    x = 10,442,857,569.66/108,529.05
  6. Step 6: Final answer
    x = 96,221.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.