Home / 121,228.16-167,229.76-82,451.84

Finding the Fourth Proportional to 121,228.16, 167,229.76 and 82,451.84

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Solution

The fourth proportional to 121,228.16, 167,229.76 and 82,451.84 is: 113,739.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,228.16 : 167,229.76 = 82,451.84 : x
  2. Step 2: Convert to fraction form
    121,228.16/167,229.76 = 82,451.84/x
  3. Step 3: Cross multiply
    121,228.16x = 167,229.76 × 82,451.84
  4. Step 4: Simplify right side
    121,228.16x = 13,788,401,414.76
  5. Step 5: Solve for x
    x = 13,788,401,414.76/121,228.16
  6. Step 6: Final answer
    x = 113,739.26

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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.