Home / 142,255.98-196,310.97-77,723.84

Finding the Fourth Proportional to 142,255.98, 196,310.97 and 77,723.84

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Solution

The fourth proportional to 142,255.98, 196,310.97 and 77,723.84 is: 107,257.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,255.98 : 196,310.97 = 77,723.84 : x
  2. Step 2: Convert to fraction form
    142,255.98/196,310.97 = 77,723.84/x
  3. Step 3: Cross multiply
    142,255.98x = 196,310.97 × 77,723.84
  4. Step 4: Simplify right side
    142,255.98x = 15,258,042,418.64
  5. Step 5: Solve for x
    x = 15,258,042,418.64/142,255.98
  6. Step 6: Final answer
    x = 107,257.65

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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.