Home / 114,552.06-158,163.75-76,401.78

Finding the Fourth Proportional to 114,552.06, 158,163.75 and 76,401.78

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Solution

The fourth proportional to 114,552.06, 158,163.75 and 76,401.78 is: 105,489.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,552.06 : 158,163.75 = 76,401.78 : x
  2. Step 2: Convert to fraction form
    114,552.06/158,163.75 = 76,401.78/x
  3. Step 3: Cross multiply
    114,552.06x = 158,163.75 × 76,401.78
  4. Step 4: Simplify right side
    114,552.06x = 12,083,992,031.48
  5. Step 5: Solve for x
    x = 12,083,992,031.48/114,552.06
  6. Step 6: Final answer
    x = 105,489.09

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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.