Home / 143,795.92-198,438.56-80,132.32

Finding the Fourth Proportional to 143,795.92, 198,438.56 and 80,132.32

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Solution

The fourth proportional to 143,795.92, 198,438.56 and 80,132.32 is: 110,582.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,795.92 : 198,438.56 = 80,132.32 : x
  2. Step 2: Convert to fraction form
    143,795.92/198,438.56 = 80,132.32/x
  3. Step 3: Cross multiply
    143,795.92x = 198,438.56 × 80,132.32
  4. Step 4: Simplify right side
    143,795.92x = 15,901,342,190.26
  5. Step 5: Solve for x
    x = 15,901,342,190.26/143,795.92
  6. Step 6: Final answer
    x = 110,582.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.