Home / 121,680.66-167,917.50-67,966.46

Finding the Fourth Proportional to 121,680.66, 167,917.50 and 67,966.46

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Solution

The fourth proportional to 121,680.66, 167,917.50 and 67,966.46 is: 93,792.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,680.66 : 167,917.50 = 67,966.46 : x
  2. Step 2: Convert to fraction form
    121,680.66/167,917.50 = 67,966.46/x
  3. Step 3: Cross multiply
    121,680.66x = 167,917.50 × 67,966.46
  4. Step 4: Simplify right side
    121,680.66x = 11,412,758,047.05
  5. Step 5: Solve for x
    x = 11,412,758,047.05/121,680.66
  6. Step 6: Final answer
    x = 93,792.70

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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.