Home / 121,698.43-167,947.26-67,989.35

Finding the Fourth Proportional to 121,698.43, 167,947.26 and 67,989.35

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Solution

The fourth proportional to 121,698.43, 167,947.26 and 67,989.35 is: 93,827.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,698.43 : 167,947.26 = 67,989.35 : x
  2. Step 2: Convert to fraction form
    121,698.43/167,947.26 = 67,989.35/x
  3. Step 3: Cross multiply
    121,698.43x = 167,947.26 × 67,989.35
  4. Step 4: Simplify right side
    121,698.43x = 11,418,625,461.55
  5. Step 5: Solve for x
    x = 11,418,625,461.55/121,698.43
  6. Step 6: Final answer
    x = 93,827.22

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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.