Home / 121,085.08-167,105.39-67,370.21

Finding the Fourth Proportional to 121,085.08, 167,105.39 and 67,370.21

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Solution

The fourth proportional to 121,085.08, 167,105.39 and 67,370.21 is: 92,975.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,085.08 : 167,105.39 = 67,370.21 : x
  2. Step 2: Convert to fraction form
    121,085.08/167,105.39 = 67,370.21/x
  3. Step 3: Cross multiply
    121,085.08x = 167,105.39 × 67,370.21
  4. Step 4: Simplify right side
    121,085.08x = 11,257,925,216.43
  5. Step 5: Solve for x
    x = 11,257,925,216.43/121,085.08
  6. Step 6: Final answer
    x = 92,975.33

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1.5x scale

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.