Home / 148,399.32-222,391.62-69,317.40

Finding the Fourth Proportional to 148,399.32, 222,391.62 and 69,317.40

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Solution

The fourth proportional to 148,399.32, 222,391.62 and 69,317.40 is: 103,879.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,399.32 : 222,391.62 = 69,317.40 : x
  2. Step 2: Convert to fraction form
    148,399.32/222,391.62 = 69,317.40/x
  3. Step 3: Cross multiply
    148,399.32x = 222,391.62 × 69,317.40
  4. Step 4: Simplify right side
    148,399.32x = 15,415,608,880.19
  5. Step 5: Solve for x
    x = 15,415,608,880.19/148,399.32
  6. Step 6: Final answer
    x = 103,879.24

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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.