Home / 141,858.96-195,749.91-78,184.50

Finding the Fourth Proportional to 141,858.96, 195,749.91 and 78,184.50

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Solution

The fourth proportional to 141,858.96, 195,749.91 and 78,184.50 is: 107,886.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,858.96 : 195,749.91 = 78,184.50 : x
  2. Step 2: Convert to fraction form
    141,858.96/195,749.91 = 78,184.50/x
  3. Step 3: Cross multiply
    141,858.96x = 195,749.91 × 78,184.50
  4. Step 4: Simplify right side
    141,858.96x = 15,304,608,838.40
  5. Step 5: Solve for x
    x = 15,304,608,838.40/141,858.96
  6. Step 6: Final answer
    x = 107,886.09

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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.