Home / 121,133.79-167,162.94-67,418.82

Finding the Fourth Proportional to 121,133.79, 167,162.94 and 67,418.82

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Solution

The fourth proportional to 121,133.79, 167,162.94 and 67,418.82 is: 93,037.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,133.79 : 167,162.94 = 67,418.82 : x
  2. Step 2: Convert to fraction form
    121,133.79/167,162.94 = 67,418.82/x
  3. Step 3: Cross multiply
    121,133.79x = 167,162.94 × 67,418.82
  4. Step 4: Simplify right side
    121,133.79x = 11,269,928,162.53
  5. Step 5: Solve for x
    x = 11,269,928,162.53/121,133.79
  6. Step 6: Final answer
    x = 93,037.03

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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.