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Finding the Fourth Proportional to 110,630, 152,680.92 and 68,187.44

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Solution

The fourth proportional to 110,630, 152,680.92 and 68,187.44 is: 94,105.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,630 : 152,680.92 = 68,187.44 : x
  2. Step 2: Convert to fraction form
    110,630/152,680.92 = 68,187.44/x
  3. Step 3: Cross multiply
    110,630x = 152,680.92 × 68,187.44
  4. Step 4: Simplify right side
    110,630x = 10,410,921,071.64
  5. Step 5: Solve for x
    x = 10,410,921,071.64/110,630
  6. Step 6: Final answer
    x = 94,105.77

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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.