Home / 140,076.50-193,305.30-76,414.28

Finding the Fourth Proportional to 140,076.50, 193,305.30 and 76,414.28

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Solution

The fourth proportional to 140,076.50, 193,305.30 and 76,414.28 is: 105,451.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,076.50 : 193,305.30 = 76,414.28 : x
  2. Step 2: Convert to fraction form
    140,076.50/193,305.30 = 76,414.28/x
  3. Step 3: Cross multiply
    140,076.50x = 193,305.30 × 76,414.28
  4. Step 4: Simplify right side
    140,076.50x = 14,771,285,319.68
  5. Step 5: Solve for x
    x = 14,771,285,319.68/140,076.50
  6. Step 6: Final answer
    x = 105,451.56

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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.