Home / 115,333.12-159,067.44-79,515.04

Finding the Fourth Proportional to 115,333.12, 159,067.44 and 79,515.04

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Solution

The fourth proportional to 115,333.12, 159,067.44 and 79,515.04 is: 109,667.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,333.12 : 159,067.44 = 79,515.04 : x
  2. Step 2: Convert to fraction form
    115,333.12/159,067.44 = 79,515.04/x
  3. Step 3: Cross multiply
    115,333.12x = 159,067.44 × 79,515.04
  4. Step 4: Simplify right side
    115,333.12x = 12,648,253,854.30
  5. Step 5: Solve for x
    x = 12,648,253,854.30/115,333.12
  6. Step 6: Final answer
    x = 109,667.14

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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.