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Finding the Fourth Proportional to 143,279.44, 197,750.82 and 82,840.48

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Solution

The fourth proportional to 143,279.44, 197,750.82 and 82,840.48 is: 114,334.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,279.44 : 197,750.82 = 82,840.48 : x
  2. Step 2: Convert to fraction form
    143,279.44/197,750.82 = 82,840.48/x
  3. Step 3: Cross multiply
    143,279.44x = 197,750.82 × 82,840.48
  4. Step 4: Simplify right side
    143,279.44x = 16,381,772,849.19
  5. Step 5: Solve for x
    x = 16,381,772,849.19/143,279.44
  6. Step 6: Final answer
    x = 114,334.43

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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.