Home / 101,270.39-151,762.97-77,485.85

Finding the Fourth Proportional to 101,270.39, 151,762.97 and 77,485.85

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Solution

The fourth proportional to 101,270.39, 151,762.97 and 77,485.85 is: 116,119.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,270.39 : 151,762.97 = 77,485.85 : x
  2. Step 2: Convert to fraction form
    101,270.39/151,762.97 = 77,485.85/x
  3. Step 3: Cross multiply
    101,270.39x = 151,762.97 × 77,485.85
  4. Step 4: Simplify right side
    101,270.39x = 11,759,481,582.73
  5. Step 5: Solve for x
    x = 11,759,481,582.73/101,270.39
  6. Step 6: Final answer
    x = 116,119.65

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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.