Home / 213,613.86-294,519.19-136,997.78

Finding the Fourth Proportional to 213,613.86, 294,519.19 and 136,997.78

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Solution

The fourth proportional to 213,613.86, 294,519.19 and 136,997.78 is: 188,885.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,613.86 : 294,519.19 = 136,997.78 : x
  2. Step 2: Convert to fraction form
    213,613.86/294,519.19 = 136,997.78/x
  3. Step 3: Cross multiply
    213,613.86x = 294,519.19 × 136,997.78
  4. Step 4: Simplify right side
    213,613.86x = 40,348,475,295.85
  5. Step 5: Solve for x
    x = 40,348,475,295.85/213,613.86
  6. Step 6: Final answer
    x = 188,885.10

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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.