Home / 115,764.26-159,719.24-75,463.31

Finding the Fourth Proportional to 115,764.26, 159,719.24 and 75,463.31

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Solution

The fourth proportional to 115,764.26, 159,719.24 and 75,463.31 is: 104,116.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,764.26 : 159,719.24 = 75,463.31 : x
  2. Step 2: Convert to fraction form
    115,764.26/159,719.24 = 75,463.31/x
  3. Step 3: Cross multiply
    115,764.26x = 159,719.24 × 75,463.31
  4. Step 4: Simplify right side
    115,764.26x = 12,052,943,109.04
  5. Step 5: Solve for x
    x = 12,052,943,109.04/115,764.26
  6. Step 6: Final answer
    x = 104,116.28

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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.