Home / 148,078.28-222,113.72-69,280.68

Finding the Fourth Proportional to 148,078.28, 222,113.72 and 69,280.68

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Solution

The fourth proportional to 148,078.28, 222,113.72 and 69,280.68 is: 103,919.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,078.28 : 222,113.72 = 69,280.68 : x
  2. Step 2: Convert to fraction form
    148,078.28/222,113.72 = 69,280.68/x
  3. Step 3: Cross multiply
    148,078.28x = 222,113.72 × 69,280.68
  4. Step 4: Simplify right side
    148,078.28x = 15,388,189,558.93
  5. Step 5: Solve for x
    x = 15,388,189,558.93/148,078.28
  6. Step 6: Final answer
    x = 103,919.29

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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.