Home / 191,183.28-286,607.20-72,775.84

Finding the Fourth Proportional to 191,183.28, 286,607.20 and 72,775.84

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Solution

The fourth proportional to 191,183.28, 286,607.20 and 72,775.84 is: 109,099.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,183.28 : 286,607.20 = 72,775.84 : x
  2. Step 2: Convert to fraction form
    191,183.28/286,607.20 = 72,775.84/x
  3. Step 3: Cross multiply
    191,183.28x = 286,607.20 × 72,775.84
  4. Step 4: Simplify right side
    191,183.28x = 20,858,079,730.05
  5. Step 5: Solve for x
    x = 20,858,079,730.05/191,183.28
  6. Step 6: Final answer
    x = 109,099.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.