Home / 140,419.40-193,778.72-76,757.44

Finding the Fourth Proportional to 140,419.40, 193,778.72 and 76,757.44

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Solution

The fourth proportional to 140,419.40, 193,778.72 and 76,757.44 is: 105,925.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,419.40 : 193,778.72 = 76,757.44 : x
  2. Step 2: Convert to fraction form
    140,419.40/193,778.72 = 76,757.44/x
  3. Step 3: Cross multiply
    140,419.40x = 193,778.72 × 76,757.44
  4. Step 4: Simplify right side
    140,419.40x = 14,873,958,473.68
  5. Step 5: Solve for x
    x = 14,873,958,473.68/140,419.40
  6. Step 6: Final answer
    x = 105,925.24

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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.