Home / 115,456.48-159,356.51-67,725.21

Finding the Fourth Proportional to 115,456.48, 159,356.51 and 67,725.21

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Solution

The fourth proportional to 115,456.48, 159,356.51 and 67,725.21 is: 93,476.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,456.48 : 159,356.51 = 67,725.21 : x
  2. Step 2: Convert to fraction form
    115,456.48/159,356.51 = 67,725.21/x
  3. Step 3: Cross multiply
    115,456.48x = 159,356.51 × 67,725.21
  4. Step 4: Simplify right side
    115,456.48x = 10,792,453,104.62
  5. Step 5: Solve for x
    x = 10,792,453,104.62/115,456.48
  6. Step 6: Final answer
    x = 93,476.37

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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.