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Finding the Fourth Proportional to 111,216.15, 166,825.05 and 89,001.09

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Solution

The fourth proportional to 111,216.15, 166,825.05 and 89,001.09 is: 133,502.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,216.15 : 166,825.05 = 89,001.09 : x
  2. Step 2: Convert to fraction form
    111,216.15/166,825.05 = 89,001.09/x
  3. Step 3: Cross multiply
    111,216.15x = 166,825.05 × 89,001.09
  4. Step 4: Simplify right side
    111,216.15x = 14,847,611,289.30
  5. Step 5: Solve for x
    x = 14,847,611,289.30/111,216.15
  6. Step 6: Final answer
    x = 133,502.30

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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.