Home / 122,021.76-168,392.88-68,305.44

Finding the Fourth Proportional to 122,021.76, 168,392.88 and 68,305.44

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Solution

The fourth proportional to 122,021.76, 168,392.88 and 68,305.44 is: 94,263.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,021.76 : 168,392.88 = 68,305.44 : x
  2. Step 2: Convert to fraction form
    122,021.76/168,392.88 = 68,305.44/x
  3. Step 3: Cross multiply
    122,021.76x = 168,392.88 × 68,305.44
  4. Step 4: Simplify right side
    122,021.76x = 11,502,149,761.27
  5. Step 5: Solve for x
    x = 11,502,149,761.27/122,021.76
  6. Step 6: Final answer
    x = 94,263.10

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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.