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Finding the Fourth Proportional to 122,302.08, 168,767.04 and 67,856

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Solution

The fourth proportional to 122,302.08, 168,767.04 and 67,856 is: 93,635.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,302.08 : 168,767.04 = 67,856 : x
  2. Step 2: Convert to fraction form
    122,302.08/168,767.04 = 67,856/x
  3. Step 3: Cross multiply
    122,302.08x = 168,767.04 × 67,856
  4. Step 4: Simplify right side
    122,302.08x = 11,451,856,266.24
  5. Step 5: Solve for x
    x = 11,451,856,266.24/122,302.08
  6. Step 6: Final answer
    x = 93,635.83

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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.