Home / 135,619.98-187,155.62-75,191.37

Finding the Fourth Proportional to 135,619.98, 187,155.62 and 75,191.37

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Solution

The fourth proportional to 135,619.98, 187,155.62 and 75,191.37 is: 103,764.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,619.98 : 187,155.62 = 75,191.37 : x
  2. Step 2: Convert to fraction form
    135,619.98/187,155.62 = 75,191.37/x
  3. Step 3: Cross multiply
    135,619.98x = 187,155.62 × 75,191.37
  4. Step 4: Simplify right side
    135,619.98x = 14,072,487,471.00
  5. Step 5: Solve for x
    x = 14,072,487,471.00/135,619.98
  6. Step 6: Final answer
    x = 103,764.12

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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.