Home / 115,954.11-160,021.26-64,967.28

Finding the Fourth Proportional to 115,954.11, 160,021.26 and 64,967.28

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Solution

The fourth proportional to 115,954.11, 160,021.26 and 64,967.28 is: 89,657.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,954.11 : 160,021.26 = 64,967.28 : x
  2. Step 2: Convert to fraction form
    115,954.11/160,021.26 = 64,967.28/x
  3. Step 3: Cross multiply
    115,954.11x = 160,021.26 × 64,967.28
  4. Step 4: Simplify right side
    115,954.11x = 10,396,146,004.37
  5. Step 5: Solve for x
    x = 10,396,146,004.37/115,954.11
  6. Step 6: Final answer
    x = 89,657.42

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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.