Home / 188,132.31-259,605.27-111,638.14

Finding the Fourth Proportional to 188,132.31, 259,605.27 and 111,638.14

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Solution

The fourth proportional to 188,132.31, 259,605.27 and 111,638.14 is: 154,050.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,132.31 : 259,605.27 = 111,638.14 : x
  2. Step 2: Convert to fraction form
    188,132.31/259,605.27 = 111,638.14/x
  3. Step 3: Cross multiply
    188,132.31x = 259,605.27 × 111,638.14
  4. Step 4: Simplify right side
    188,132.31x = 28,981,849,477.00
  5. Step 5: Solve for x
    x = 28,981,849,477.00/188,132.31
  6. Step 6: Final answer
    x = 154,050.36

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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.