Home / 129,863.72-179,183.46-84,536.84

Finding the Fourth Proportional to 129,863.72, 179,183.46 and 84,536.84

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Solution

The fourth proportional to 129,863.72, 179,183.46 and 84,536.84 is: 116,642.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,863.72 : 179,183.46 = 84,536.84 : x
  2. Step 2: Convert to fraction form
    129,863.72/179,183.46 = 84,536.84/x
  3. Step 3: Cross multiply
    129,863.72x = 179,183.46 × 84,536.84
  4. Step 4: Simplify right side
    129,863.72x = 15,147,603,488.67
  5. Step 5: Solve for x
    x = 15,147,603,488.67/129,863.72
  6. Step 6: Final answer
    x = 116,642.30

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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.