Home / 135,051.26-186,370.78-75,435.26

Finding the Fourth Proportional to 135,051.26, 186,370.78 and 75,435.26

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Solution

The fourth proportional to 135,051.26, 186,370.78 and 75,435.26 is: 104,100.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,051.26 : 186,370.78 = 75,435.26 : x
  2. Step 2: Convert to fraction form
    135,051.26/186,370.78 = 75,435.26/x
  3. Step 3: Cross multiply
    135,051.26x = 186,370.78 × 75,435.26
  4. Step 4: Simplify right side
    135,051.26x = 14,058,928,245.70
  5. Step 5: Solve for x
    x = 14,058,928,245.70/135,051.26
  6. Step 6: Final answer
    x = 104,100.68

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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.