Home / 142,067.22-196,046.58-77,534.80

Finding the Fourth Proportional to 142,067.22, 196,046.58 and 77,534.80

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Solution

The fourth proportional to 142,067.22, 196,046.58 and 77,534.80 is: 106,994.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,067.22 : 196,046.58 = 77,534.80 : x
  2. Step 2: Convert to fraction form
    142,067.22/196,046.58 = 77,534.80/x
  3. Step 3: Cross multiply
    142,067.22x = 196,046.58 × 77,534.80
  4. Step 4: Simplify right side
    142,067.22x = 15,200,432,370.98
  5. Step 5: Solve for x
    x = 15,200,432,370.98/142,067.22
  6. Step 6: Final answer
    x = 106,994.65

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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.