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Finding the Fourth Proportional to 111,313.90, 166,552.08 and 68,470.30

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Solution

The fourth proportional to 111,313.90, 166,552.08 and 68,470.30 is: 102,447.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,313.90 : 166,552.08 = 68,470.30 : x
  2. Step 2: Convert to fraction form
    111,313.90/166,552.08 = 68,470.30/x
  3. Step 3: Cross multiply
    111,313.90x = 166,552.08 × 68,470.30
  4. Step 4: Simplify right side
    111,313.90x = 11,403,870,883.22
  5. Step 5: Solve for x
    x = 11,403,870,883.22/111,313.90
  6. Step 6: Final answer
    x = 102,447.86

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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.