Home / 140,719.78-194,193.38-76,189.58

Finding the Fourth Proportional to 140,719.78, 194,193.38 and 76,189.58

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Solution

The fourth proportional to 140,719.78, 194,193.38 and 76,189.58 is: 105,141.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,719.78 : 194,193.38 = 76,189.58 : x
  2. Step 2: Convert to fraction form
    140,719.78/194,193.38 = 76,189.58/x
  3. Step 3: Cross multiply
    140,719.78x = 194,193.38 × 76,189.58
  4. Step 4: Simplify right side
    140,719.78x = 14,795,512,008.71
  5. Step 5: Solve for x
    x = 14,795,512,008.71/140,719.78
  6. Step 6: Final answer
    x = 105,141.66

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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.