Home / 115,743.13-159,759.14-67,356.36

Finding the Fourth Proportional to 115,743.13, 159,759.14 and 67,356.36

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Solution

The fourth proportional to 115,743.13, 159,759.14 and 67,356.36 is: 92,971.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,743.13 : 159,759.14 = 67,356.36 : x
  2. Step 2: Convert to fraction form
    115,743.13/159,759.14 = 67,356.36/x
  3. Step 3: Cross multiply
    115,743.13x = 159,759.14 × 67,356.36
  4. Step 4: Simplify right side
    115,743.13x = 10,760,793,810.35
  5. Step 5: Solve for x
    x = 10,760,793,810.35/115,743.13
  6. Step 6: Final answer
    x = 92,971.34

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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.