Home / 122,105.76-168,501.36-68,388.12

Finding the Fourth Proportional to 122,105.76, 168,501.36 and 68,388.12

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Solution

The fourth proportional to 122,105.76, 168,501.36 and 68,388.12 is: 94,373.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,105.76 : 168,501.36 = 68,388.12 : x
  2. Step 2: Convert to fraction form
    122,105.76/168,501.36 = 68,388.12/x
  3. Step 3: Cross multiply
    122,105.76x = 168,501.36 × 68,388.12
  4. Step 4: Simplify right side
    122,105.76x = 11,523,491,227.84
  5. Step 5: Solve for x
    x = 11,523,491,227.84/122,105.76
  6. Step 6: Final answer
    x = 94,373.04

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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.