Home / 111,890.45-154,404.27-64,110.57

Finding the Fourth Proportional to 111,890.45, 154,404.27 and 64,110.57

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Solution

The fourth proportional to 111,890.45, 154,404.27 and 64,110.57 is: 88,469.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,890.45 : 154,404.27 = 64,110.57 : x
  2. Step 2: Convert to fraction form
    111,890.45/154,404.27 = 64,110.57/x
  3. Step 3: Cross multiply
    111,890.45x = 154,404.27 × 64,110.57
  4. Step 4: Simplify right side
    111,890.45x = 9,898,945,760.13
  5. Step 5: Solve for x
    x = 9,898,945,760.13/111,890.45
  6. Step 6: Final answer
    x = 88,469.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.