Home / 140,309.26-193,624.35-76,645.42

Finding the Fourth Proportional to 140,309.26, 193,624.35 and 76,645.42

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Solution

The fourth proportional to 140,309.26, 193,624.35 and 76,645.42 is: 105,769.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,309.26 : 193,624.35 = 76,645.42 : x
  2. Step 2: Convert to fraction form
    140,309.26/193,624.35 = 76,645.42/x
  3. Step 3: Cross multiply
    140,309.26x = 193,624.35 × 76,645.42
  4. Step 4: Simplify right side
    140,309.26x = 14,840,419,627.98
  5. Step 5: Solve for x
    x = 14,840,419,627.98/140,309.26
  6. Step 6: Final answer
    x = 105,769.35

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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.