Home / 121,520.06-167,707.09-67,082.90

Finding the Fourth Proportional to 121,520.06, 167,707.09 and 67,082.90

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Solution

The fourth proportional to 121,520.06, 167,707.09 and 67,082.90 is: 92,579.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,520.06 : 167,707.09 = 67,082.90 : x
  2. Step 2: Convert to fraction form
    121,520.06/167,707.09 = 67,082.90/x
  3. Step 3: Cross multiply
    121,520.06x = 167,707.09 × 67,082.90
  4. Step 4: Simplify right side
    121,520.06x = 11,250,277,193.08
  5. Step 5: Solve for x
    x = 11,250,277,193.08/121,520.06
  6. Step 6: Final answer
    x = 92,579.59

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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.