Home / 135,620.26-187,155.62-75,189.35

Finding the Fourth Proportional to 135,620.26, 187,155.62 and 75,189.35

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Solution

The fourth proportional to 135,620.26, 187,155.62 and 75,189.35 is: 103,761.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,620.26 : 187,155.62 = 75,189.35 : x
  2. Step 2: Convert to fraction form
    135,620.26/187,155.62 = 75,189.35/x
  3. Step 3: Cross multiply
    135,620.26x = 187,155.62 × 75,189.35
  4. Step 4: Simplify right side
    135,620.26x = 14,072,110,072.51
  5. Step 5: Solve for x
    x = 14,072,110,072.51/135,620.26
  6. Step 6: Final answer
    x = 103,761.12

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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.