Home / 140,067.60-193,292.56-76,404.84

Finding the Fourth Proportional to 140,067.60, 193,292.56 and 76,404.84

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Solution

The fourth proportional to 140,067.60, 193,292.56 and 76,404.84 is: 105,438.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,067.60 : 193,292.56 = 76,404.84 : x
  2. Step 2: Convert to fraction form
    140,067.60/193,292.56 = 76,404.84/x
  3. Step 3: Cross multiply
    140,067.60x = 193,292.56 × 76,404.84
  4. Step 4: Simplify right side
    140,067.60x = 14,768,487,119.99
  5. Step 5: Solve for x
    x = 14,768,487,119.99/140,067.60
  6. Step 6: Final answer
    x = 105,438.28

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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.