Home / 140,737.20-194,217.66-76,206.54

Finding the Fourth Proportional to 140,737.20, 194,217.66 and 76,206.54

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Solution

The fourth proportional to 140,737.20, 194,217.66 and 76,206.54 is: 105,165.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,737.20 : 194,217.66 = 76,206.54 : x
  2. Step 2: Convert to fraction form
    140,737.20/194,217.66 = 76,206.54/x
  3. Step 3: Cross multiply
    140,737.20x = 194,217.66 × 76,206.54
  4. Step 4: Simplify right side
    140,737.20x = 14,800,655,875.50
  5. Step 5: Solve for x
    x = 14,800,655,875.50/140,737.20
  6. Step 6: Final answer
    x = 105,165.20

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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.