Home / 103,620.16-155,226.85-53,732.87

Finding the Fourth Proportional to 103,620.16, 155,226.85 and 53,732.87

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Solution

The fourth proportional to 103,620.16, 155,226.85 and 53,732.87 is: 80,493.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,620.16 : 155,226.85 = 53,732.87 : x
  2. Step 2: Convert to fraction form
    103,620.16/155,226.85 = 53,732.87/x
  3. Step 3: Cross multiply
    103,620.16x = 155,226.85 × 53,732.87
  4. Step 4: Simplify right side
    103,620.16x = 8,340,784,151.56
  5. Step 5: Solve for x
    x = 8,340,784,151.56/103,620.16
  6. Step 6: Final answer
    x = 80,493.84

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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.