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Finding the Fourth Proportional to 69,348.30, 104,022.45 and 68,657.10

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Solution

The fourth proportional to 69,348.30, 104,022.45 and 68,657.10 is: 102,985.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,348.30 : 104,022.45 = 68,657.10 : x
  2. Step 2: Convert to fraction form
    69,348.30/104,022.45 = 68,657.10/x
  3. Step 3: Cross multiply
    69,348.30x = 104,022.45 × 68,657.10
  4. Step 4: Simplify right side
    69,348.30x = 7,141,879,751.90
  5. Step 5: Solve for x
    x = 7,141,879,751.90/69,348.30
  6. Step 6: Final answer
    x = 102,985.65

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.