Home / 122,120.88-168,527.26-71,168.56

Finding the Fourth Proportional to 122,120.88, 168,527.26 and 71,168.56

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Solution

The fourth proportional to 122,120.88, 168,527.26 and 71,168.56 is: 98,212.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,120.88 : 168,527.26 = 71,168.56 : x
  2. Step 2: Convert to fraction form
    122,120.88/168,527.26 = 71,168.56/x
  3. Step 3: Cross multiply
    122,120.88x = 168,527.26 × 71,168.56
  4. Step 4: Simplify right side
    122,120.88x = 11,993,842,414.95
  5. Step 5: Solve for x
    x = 11,993,842,414.95/122,120.88
  6. Step 6: Final answer
    x = 98,212.87

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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.