Home / 188,136.31-259,619.81-107,569.11

Finding the Fourth Proportional to 188,136.31, 259,619.81 and 107,569.11

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Solution

The fourth proportional to 188,136.31, 259,619.81 and 107,569.11 is: 148,440.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,136.31 : 259,619.81 = 107,569.11 : x
  2. Step 2: Convert to fraction form
    188,136.31/259,619.81 = 107,569.11/x
  3. Step 3: Cross multiply
    188,136.31x = 259,619.81 × 107,569.11
  4. Step 4: Simplify right side
    188,136.31x = 27,927,071,900.07
  5. Step 5: Solve for x
    x = 27,927,071,900.07/188,136.31
  6. Step 6: Final answer
    x = 148,440.63

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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.