Home / 143,455.20-197,967.24-79,792.80

Finding the Fourth Proportional to 143,455.20, 197,967.24 and 79,792.80

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Solution

The fourth proportional to 143,455.20, 197,967.24 and 79,792.80 is: 110,113.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,455.20 : 197,967.24 = 79,792.80 : x
  2. Step 2: Convert to fraction form
    143,455.20/197,967.24 = 79,792.80/x
  3. Step 3: Cross multiply
    143,455.20x = 197,967.24 × 79,792.80
  4. Step 4: Simplify right side
    143,455.20x = 15,796,360,387.87
  5. Step 5: Solve for x
    x = 15,796,360,387.87/143,455.20
  6. Step 6: Final answer
    x = 110,113.54

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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.