Home / 168,179.19-231,898.74-137,456.94

Finding the Fourth Proportional to 168,179.19, 231,898.74 and 137,456.94

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Solution

The fourth proportional to 168,179.19, 231,898.74 and 137,456.94 is: 189,536.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,179.19 : 231,898.74 = 137,456.94 : x
  2. Step 2: Convert to fraction form
    168,179.19/231,898.74 = 137,456.94/x
  3. Step 3: Cross multiply
    168,179.19x = 231,898.74 × 137,456.94
  4. Step 4: Simplify right side
    168,179.19x = 31,876,091,025.34
  5. Step 5: Solve for x
    x = 31,876,091,025.34/168,179.19
  6. Step 6: Final answer
    x = 189,536.48

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1.5x scale

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.