Home / 121,757.49-168,028.83-68,048.55

Finding the Fourth Proportional to 121,757.49, 168,028.83 and 68,048.55

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Solution

The fourth proportional to 121,757.49, 168,028.83 and 68,048.55 is: 93,908.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,757.49 : 168,028.83 = 68,048.55 : x
  2. Step 2: Convert to fraction form
    121,757.49/168,028.83 = 68,048.55/x
  3. Step 3: Cross multiply
    121,757.49x = 168,028.83 × 68,048.55
  4. Step 4: Simplify right side
    121,757.49x = 11,434,118,239.70
  5. Step 5: Solve for x
    x = 11,434,118,239.70/121,757.49
  6. Step 6: Final answer
    x = 93,908.95

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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.