Home / 140,076.12-193,305.06-76,414.18

Finding the Fourth Proportional to 140,076.12, 193,305.06 and 76,414.18

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Solution

The fourth proportional to 140,076.12, 193,305.06 and 76,414.18 is: 105,451.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,076.12 : 193,305.06 = 76,414.18 : x
  2. Step 2: Convert to fraction form
    140,076.12/193,305.06 = 76,414.18/x
  3. Step 3: Cross multiply
    140,076.12x = 193,305.06 × 76,414.18
  4. Step 4: Simplify right side
    140,076.12x = 14,771,247,649.75
  5. Step 5: Solve for x
    x = 14,771,247,649.75/140,076.12
  6. Step 6: Final answer
    x = 105,451.58

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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.