Home / 142,850.95-197,121.04-79,183.33

Finding the Fourth Proportional to 142,850.95, 197,121.04 and 79,183.33

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Solution

The fourth proportional to 142,850.95, 197,121.04 and 79,183.33 is: 109,265.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,850.95 : 197,121.04 = 79,183.33 : x
  2. Step 2: Convert to fraction form
    142,850.95/197,121.04 = 79,183.33/x
  3. Step 3: Cross multiply
    142,850.95x = 197,121.04 × 79,183.33
  4. Step 4: Simplify right side
    142,850.95x = 15,608,700,360.26
  5. Step 5: Solve for x
    x = 15,608,700,360.26/142,850.95
  6. Step 6: Final answer
    x = 109,265.64

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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.