Home / 143,350.98-197,778.02-79,676.48

Finding the Fourth Proportional to 143,350.98, 197,778.02 and 79,676.48

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Solution

The fourth proportional to 143,350.98, 197,778.02 and 79,676.48 is: 109,927.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,350.98 : 197,778.02 = 79,676.48 : x
  2. Step 2: Convert to fraction form
    143,350.98/197,778.02 = 79,676.48/x
  3. Step 3: Cross multiply
    143,350.98x = 197,778.02 × 79,676.48
  4. Step 4: Simplify right side
    143,350.98x = 15,758,256,454.97
  5. Step 5: Solve for x
    x = 15,758,256,454.97/143,350.98
  6. Step 6: Final answer
    x = 109,927.79

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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.