Home / 121,682.40-167,919.93-67,968.20

Finding the Fourth Proportional to 121,682.40, 167,919.93 and 67,968.20

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Solution

The fourth proportional to 121,682.40, 167,919.93 and 67,968.20 is: 93,795.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,682.40 : 167,919.93 = 67,968.20 : x
  2. Step 2: Convert to fraction form
    121,682.40/167,919.93 = 67,968.20/x
  3. Step 3: Cross multiply
    121,682.40x = 167,919.93 × 67,968.20
  4. Step 4: Simplify right side
    121,682.40x = 11,413,214,546.63
  5. Step 5: Solve for x
    x = 11,413,214,546.63/121,682.40
  6. Step 6: Final answer
    x = 93,795.11

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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.