Home / 121,427.92-167,579.08-67,716.56

Finding the Fourth Proportional to 121,427.92, 167,579.08 and 67,716.56

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Solution

The fourth proportional to 121,427.92, 167,579.08 and 67,716.56 is: 93,453.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,427.92 : 167,579.08 = 67,716.56 : x
  2. Step 2: Convert to fraction form
    121,427.92/167,579.08 = 67,716.56/x
  3. Step 3: Cross multiply
    121,427.92x = 167,579.08 × 67,716.56
  4. Step 4: Simplify right side
    121,427.92x = 11,347,878,825.56
  5. Step 5: Solve for x
    x = 11,347,878,825.56/121,427.92
  6. Step 6: Final answer
    x = 93,453.62

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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.