Home / 115,615.68-159,546.27-64,628.52

Finding the Fourth Proportional to 115,615.68, 159,546.27 and 64,628.52

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Solution

The fourth proportional to 115,615.68, 159,546.27 and 64,628.52 is: 89,185.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,615.68 : 159,546.27 = 64,628.52 : x
  2. Step 2: Convert to fraction form
    115,615.68/159,546.27 = 64,628.52/x
  3. Step 3: Cross multiply
    115,615.68x = 159,546.27 × 64,628.52
  4. Step 4: Simplify right side
    115,615.68x = 10,311,239,301.62
  5. Step 5: Solve for x
    x = 10,311,239,301.62/115,615.68
  6. Step 6: Final answer
    x = 89,185.47

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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.