Home / 140,336.28-193,657.02-76,662.36

Finding the Fourth Proportional to 140,336.28, 193,657.02 and 76,662.36

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Solution

The fourth proportional to 140,336.28, 193,657.02 and 76,662.36 is: 105,790.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,336.28 : 193,657.02 = 76,662.36 : x
  2. Step 2: Convert to fraction form
    140,336.28/193,657.02 = 76,662.36/x
  3. Step 3: Cross multiply
    140,336.28x = 193,657.02 × 76,662.36
  4. Step 4: Simplify right side
    140,336.28x = 14,846,204,183.77
  5. Step 5: Solve for x
    x = 14,846,204,183.77/140,336.28
  6. Step 6: Final answer
    x = 105,790.21

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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.