Home / 196,782.18-295,115.58-90,105.81

Finding the Fourth Proportional to 196,782.18, 295,115.58 and 90,105.81

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Solution

The fourth proportional to 196,782.18, 295,115.58 and 90,105.81 is: 135,132.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,782.18 : 295,115.58 = 90,105.81 : x
  2. Step 2: Convert to fraction form
    196,782.18/295,115.58 = 90,105.81/x
  3. Step 3: Cross multiply
    196,782.18x = 295,115.58 × 90,105.81
  4. Step 4: Simplify right side
    196,782.18x = 26,591,628,379.52
  5. Step 5: Solve for x
    x = 26,591,628,379.52/196,782.18
  6. Step 6: Final answer
    x = 135,132.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.