Home / 141,078.21-194,691.96-77,420.22

Finding the Fourth Proportional to 141,078.21, 194,691.96 and 77,420.22

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Solution

The fourth proportional to 141,078.21, 194,691.96 and 77,420.22 is: 106,842.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,078.21 : 194,691.96 = 77,420.22 : x
  2. Step 2: Convert to fraction form
    141,078.21/194,691.96 = 77,420.22/x
  3. Step 3: Cross multiply
    141,078.21x = 194,691.96 × 77,420.22
  4. Step 4: Simplify right side
    141,078.21x = 15,073,094,375.43
  5. Step 5: Solve for x
    x = 15,073,094,375.43/141,078.21
  6. Step 6: Final answer
    x = 106,842.12

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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.