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Finding the Fourth Proportional to 110,841.80, 166,262.70 and 66,518.60

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Solution

The fourth proportional to 110,841.80, 166,262.70 and 66,518.60 is: 99,777.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,841.80 : 166,262.70 = 66,518.60 : x
  2. Step 2: Convert to fraction form
    110,841.80/166,262.70 = 66,518.60/x
  3. Step 3: Cross multiply
    110,841.80x = 166,262.70 × 66,518.60
  4. Step 4: Simplify right side
    110,841.80x = 11,059,562,036.22
  5. Step 5: Solve for x
    x = 11,059,562,036.22/110,841.80
  6. Step 6: Final answer
    x = 99,777.90

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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.