Home / 143,422.72-197,908.16-79,750.24

Finding the Fourth Proportional to 143,422.72, 197,908.16 and 79,750.24

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Solution

The fourth proportional to 143,422.72, 197,908.16 and 79,750.24 is: 110,046.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,422.72 : 197,908.16 = 79,750.24 : x
  2. Step 2: Convert to fraction form
    143,422.72/197,908.16 = 79,750.24/x
  3. Step 3: Cross multiply
    143,422.72x = 197,908.16 × 79,750.24
  4. Step 4: Simplify right side
    143,422.72x = 15,783,223,257.96
  5. Step 5: Solve for x
    x = 15,783,223,257.96/143,422.72
  6. Step 6: Final answer
    x = 110,046.88

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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.