Home / 147,579.14-221,406.78-68,600.90

Finding the Fourth Proportional to 147,579.14, 221,406.78 and 68,600.90

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Solution

The fourth proportional to 147,579.14, 221,406.78 and 68,600.90 is: 102,919.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,579.14 : 221,406.78 = 68,600.90 : x
  2. Step 2: Convert to fraction form
    147,579.14/221,406.78 = 68,600.90/x
  3. Step 3: Cross multiply
    147,579.14x = 221,406.78 × 68,600.90
  4. Step 4: Simplify right side
    147,579.14x = 15,188,704,374.10
  5. Step 5: Solve for x
    x = 15,188,704,374.10/147,579.14
  6. Step 6: Final answer
    x = 102,919.05

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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.