Home / 122,439.60-168,983.70-68,004

Finding the Fourth Proportional to 122,439.60, 168,983.70 and 68,004

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Solution

The fourth proportional to 122,439.60, 168,983.70 and 68,004 is: 93,854.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,439.60 : 168,983.70 = 68,004 : x
  2. Step 2: Convert to fraction form
    122,439.60/168,983.70 = 68,004/x
  3. Step 3: Cross multiply
    122,439.60x = 168,983.70 × 68,004
  4. Step 4: Simplify right side
    122,439.60x = 11,491,567,534.80
  5. Step 5: Solve for x
    x = 11,491,567,534.80/122,439.60
  6. Step 6: Final answer
    x = 93,854.99

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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.