Home / 140,173.88-193,436.92-76,512.76

Finding the Fourth Proportional to 140,173.88, 193,436.92 and 76,512.76

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Solution

The fourth proportional to 140,173.88, 193,436.92 and 76,512.76 is: 105,585.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,173.88 : 193,436.92 = 76,512.76 : x
  2. Step 2: Convert to fraction form
    140,173.88/193,436.92 = 76,512.76/x
  3. Step 3: Cross multiply
    140,173.88x = 193,436.92 × 76,512.76
  4. Step 4: Simplify right side
    140,173.88x = 14,800,392,635.10
  5. Step 5: Solve for x
    x = 14,800,392,635.10/140,173.88
  6. Step 6: Final answer
    x = 105,585.95

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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.