Home / 135,208.50-186,571.31-74,770.91

Finding the Fourth Proportional to 135,208.50, 186,571.31 and 74,770.91

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Solution

The fourth proportional to 135,208.50, 186,571.31 and 74,770.91 is: 103,174.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,208.50 : 186,571.31 = 74,770.91 : x
  2. Step 2: Convert to fraction form
    135,208.50/186,571.31 = 74,770.91/x
  3. Step 3: Cross multiply
    135,208.50x = 186,571.31 × 74,770.91
  4. Step 4: Simplify right side
    135,208.50x = 13,950,106,628.59
  5. Step 5: Solve for x
    x = 13,950,106,628.59/135,208.50
  6. Step 6: Final answer
    x = 103,174.78

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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.