Home / 121,160.18-167,181.36-67,443.96

Finding the Fourth Proportional to 121,160.18, 167,181.36 and 67,443.96

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Solution

The fourth proportional to 121,160.18, 167,181.36 and 67,443.96 is: 93,061.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,160.18 : 167,181.36 = 67,443.96 : x
  2. Step 2: Convert to fraction form
    121,160.18/167,181.36 = 67,443.96/x
  3. Step 3: Cross multiply
    121,160.18x = 167,181.36 × 67,443.96
  4. Step 4: Simplify right side
    121,160.18x = 11,275,372,956.59
  5. Step 5: Solve for x
    x = 11,275,372,956.59/121,160.18
  6. Step 6: Final answer
    x = 93,061.71

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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.