Home / 111,390.08-166,884.08-73,861.28

Finding the Fourth Proportional to 111,390.08, 166,884.08 and 73,861.28

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Solution

The fourth proportional to 111,390.08, 166,884.08 and 73,861.28 is: 110,658.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,390.08 : 166,884.08 = 73,861.28 : x
  2. Step 2: Convert to fraction form
    111,390.08/166,884.08 = 73,861.28/x
  3. Step 3: Cross multiply
    111,390.08x = 166,884.08 × 73,861.28
  4. Step 4: Simplify right side
    111,390.08x = 12,326,271,760.42
  5. Step 5: Solve for x
    x = 12,326,271,760.42/111,390.08
  6. Step 6: Final answer
    x = 110,658.61

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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.