Home / 121,585.43-167,790.56-67,137.46

Finding the Fourth Proportional to 121,585.43, 167,790.56 and 67,137.46

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Solution

The fourth proportional to 121,585.43, 167,790.56 and 67,137.46 is: 92,651.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,585.43 : 167,790.56 = 67,137.46 : x
  2. Step 2: Convert to fraction form
    121,585.43/167,790.56 = 67,137.46/x
  3. Step 3: Cross multiply
    121,585.43x = 167,790.56 × 67,137.46
  4. Step 4: Simplify right side
    121,585.43x = 11,265,031,255.21
  5. Step 5: Solve for x
    x = 11,265,031,255.21/121,585.43
  6. Step 6: Final answer
    x = 92,651.16

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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.