Home / 115,890.92-172,967.56-108,324.12

Finding the Fourth Proportional to 115,890.92, 172,967.56 and 108,324.12

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Solution

The fourth proportional to 115,890.92, 172,967.56 and 108,324.12 is: 161,674.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,890.92 : 172,967.56 = 108,324.12 : x
  2. Step 2: Convert to fraction form
    115,890.92/172,967.56 = 108,324.12/x
  3. Step 3: Cross multiply
    115,890.92x = 172,967.56 × 108,324.12
  4. Step 4: Simplify right side
    115,890.92x = 18,736,558,725.55
  5. Step 5: Solve for x
    x = 18,736,558,725.55/115,890.92
  6. Step 6: Final answer
    x = 161,674.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.