Home / 135,380.75-186,824.74-74,125.82

Finding the Fourth Proportional to 135,380.75, 186,824.74 and 74,125.82

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Solution

The fourth proportional to 135,380.75, 186,824.74 and 74,125.82 is: 102,293.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,380.75 : 186,824.74 = 74,125.82 : x
  2. Step 2: Convert to fraction form
    135,380.75/186,824.74 = 74,125.82/x
  3. Step 3: Cross multiply
    135,380.75x = 186,824.74 × 74,125.82
  4. Step 4: Simplify right side
    135,380.75x = 13,848,537,747.49
  5. Step 5: Solve for x
    x = 13,848,537,747.49/135,380.75
  6. Step 6: Final answer
    x = 102,293.26

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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.