Home / 115,786.66-159,734.87-68,018.46

Finding the Fourth Proportional to 115,786.66, 159,734.87 and 68,018.46

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Solution

The fourth proportional to 115,786.66, 159,734.87 and 68,018.46 is: 93,835.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,786.66 : 159,734.87 = 68,018.46 : x
  2. Step 2: Convert to fraction form
    115,786.66/159,734.87 = 68,018.46/x
  3. Step 3: Cross multiply
    115,786.66x = 159,734.87 × 68,018.46
  4. Step 4: Simplify right side
    115,786.66x = 10,864,918,726.93
  5. Step 5: Solve for x
    x = 10,864,918,726.93/115,786.66
  6. Step 6: Final answer
    x = 93,835.67

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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.