Home / 142,690.22-196,910.09-79,026.65

Finding the Fourth Proportional to 142,690.22, 196,910.09 and 79,026.65

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Solution

The fourth proportional to 142,690.22, 196,910.09 and 79,026.65 is: 109,055.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,690.22 : 196,910.09 = 79,026.65 : x
  2. Step 2: Convert to fraction form
    142,690.22/196,910.09 = 79,026.65/x
  3. Step 3: Cross multiply
    142,690.22x = 196,910.09 × 79,026.65
  4. Step 4: Simplify right side
    142,690.22x = 15,561,144,418.98
  5. Step 5: Solve for x
    x = 15,561,144,418.98/142,690.22
  6. Step 6: Final answer
    x = 109,055.44

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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.