Home / 127,609.29-191,414.52-51,709.28

Finding the Fourth Proportional to 127,609.29, 191,414.52 and 51,709.28

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Solution

The fourth proportional to 127,609.29, 191,414.52 and 51,709.28 is: 77,564.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,609.29 : 191,414.52 = 51,709.28 : x
  2. Step 2: Convert to fraction form
    127,609.29/191,414.52 = 51,709.28/x
  3. Step 3: Cross multiply
    127,609.29x = 191,414.52 × 51,709.28
  4. Step 4: Simplify right side
    127,609.29x = 9,897,906,053.67
  5. Step 5: Solve for x
    x = 9,897,906,053.67/127,609.29
  6. Step 6: Final answer
    x = 77,564.15

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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.