Home / 133,216.48-183,833.04-72,786.16

Finding the Fourth Proportional to 133,216.48, 183,833.04 and 72,786.16

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Solution

The fourth proportional to 133,216.48, 183,833.04 and 72,786.16 is: 100,441.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,216.48 : 183,833.04 = 72,786.16 : x
  2. Step 2: Convert to fraction form
    133,216.48/183,833.04 = 72,786.16/x
  3. Step 3: Cross multiply
    133,216.48x = 183,833.04 × 72,786.16
  4. Step 4: Simplify right side
    133,216.48x = 13,380,501,062.73
  5. Step 5: Solve for x
    x = 13,380,501,062.73/133,216.48
  6. Step 6: Final answer
    x = 100,441.79

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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.