Home / 125,021.16-187,609.50-91,227.96

Finding the Fourth Proportional to 125,021.16, 187,609.50 and 91,227.96

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Solution

The fourth proportional to 125,021.16, 187,609.50 and 91,227.96 is: 136,898.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,021.16 : 187,609.50 = 91,227.96 : x
  2. Step 2: Convert to fraction form
    125,021.16/187,609.50 = 91,227.96/x
  3. Step 3: Cross multiply
    125,021.16x = 187,609.50 × 91,227.96
  4. Step 4: Simplify right side
    125,021.16x = 17,115,231,961.62
  5. Step 5: Solve for x
    x = 17,115,231,961.62/125,021.16
  6. Step 6: Final answer
    x = 136,898.68

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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.