Home / 122,108.40-168,504.60-68,392.56

Finding the Fourth Proportional to 122,108.40, 168,504.60 and 68,392.56

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Solution

The fourth proportional to 122,108.40, 168,504.60 and 68,392.56 is: 94,378.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,108.40 : 168,504.60 = 68,392.56 : x
  2. Step 2: Convert to fraction form
    122,108.40/168,504.60 = 68,392.56/x
  3. Step 3: Cross multiply
    122,108.40x = 168,504.60 × 68,392.56
  4. Step 4: Simplify right side
    122,108.40x = 11,524,460,965.78
  5. Step 5: Solve for x
    x = 11,524,460,965.78/122,108.40
  6. Step 6: Final answer
    x = 94,378.94

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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.