Home / 236,131.39-354,115.07-78,322.94

Finding the Fourth Proportional to 236,131.39, 354,115.07 and 78,322.94

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Solution

The fourth proportional to 236,131.39, 354,115.07 and 78,322.94 is: 117,457.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,131.39 : 354,115.07 = 78,322.94 : x
  2. Step 2: Convert to fraction form
    236,131.39/354,115.07 = 78,322.94/x
  3. Step 3: Cross multiply
    236,131.39x = 354,115.07 × 78,322.94
  4. Step 4: Simplify right side
    236,131.39x = 27,735,333,380.71
  5. Step 5: Solve for x
    x = 27,735,333,380.71/236,131.39
  6. Step 6: Final answer
    x = 117,457.21

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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.