Home / 115,581.36-159,494.22-65,270.64

Finding the Fourth Proportional to 115,581.36, 159,494.22 and 65,270.64

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Solution

The fourth proportional to 115,581.36, 159,494.22 and 65,270.64 is: 90,068.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,581.36 : 159,494.22 = 65,270.64 : x
  2. Step 2: Convert to fraction form
    115,581.36/159,494.22 = 65,270.64/x
  3. Step 3: Cross multiply
    115,581.36x = 159,494.22 × 65,270.64
  4. Step 4: Simplify right side
    115,581.36x = 10,410,289,815.70
  5. Step 5: Solve for x
    x = 10,410,289,815.70/115,581.36
  6. Step 6: Final answer
    x = 90,068.93

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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.