Home / 141,739.35-212,609.31-133,078.83

Finding the Fourth Proportional to 141,739.35, 212,609.31 and 133,078.83

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Solution

The fourth proportional to 141,739.35, 212,609.31 and 133,078.83 is: 199,618.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,739.35 : 212,609.31 = 133,078.83 : x
  2. Step 2: Convert to fraction form
    141,739.35/212,609.31 = 133,078.83/x
  3. Step 3: Cross multiply
    141,739.35x = 212,609.31 × 133,078.83
  4. Step 4: Simplify right side
    141,739.35x = 28,293,798,221.91
  5. Step 5: Solve for x
    x = 28,293,798,221.91/141,739.35
  6. Step 6: Final answer
    x = 199,618.51

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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.