Home / 190,936.51-286,169.55-78,546.58

Finding the Fourth Proportional to 190,936.51, 286,169.55 and 78,546.58

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Solution

The fourth proportional to 190,936.51, 286,169.55 and 78,546.58 is: 117,723.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,936.51 : 286,169.55 = 78,546.58 : x
  2. Step 2: Convert to fraction form
    190,936.51/286,169.55 = 78,546.58/x
  3. Step 3: Cross multiply
    190,936.51x = 286,169.55 × 78,546.58
  4. Step 4: Simplify right side
    190,936.51x = 22,477,639,452.64
  5. Step 5: Solve for x
    x = 22,477,639,452.64/190,936.51
  6. Step 6: Final answer
    x = 117,723.11

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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.