Home / 206,003.72-284,184.78-129,617.48

Finding the Fourth Proportional to 206,003.72, 284,184.78 and 129,617.48

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Solution

The fourth proportional to 206,003.72, 284,184.78 and 129,617.48 is: 178,808.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,003.72 : 284,184.78 = 129,617.48 : x
  2. Step 2: Convert to fraction form
    206,003.72/284,184.78 = 129,617.48/x
  3. Step 3: Cross multiply
    206,003.72x = 284,184.78 × 129,617.48
  4. Step 4: Simplify right side
    206,003.72x = 36,835,315,037.95
  5. Step 5: Solve for x
    x = 36,835,315,037.95/206,003.72
  6. Step 6: Final answer
    x = 178,808.98

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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.