Home / 136,736.61-188,706.00-76,319.03

Finding the Fourth Proportional to 136,736.61, 188,706.00 and 76,319.03

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Solution

The fourth proportional to 136,736.61, 188,706.00 and 76,319.03 is: 105,325.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,736.61 : 188,706.00 = 76,319.03 : x
  2. Step 2: Convert to fraction form
    136,736.61/188,706.00 = 76,319.03/x
  3. Step 3: Cross multiply
    136,736.61x = 188,706.00 × 76,319.03
  4. Step 4: Simplify right side
    136,736.61x = 14,401,858,217.85
  5. Step 5: Solve for x
    x = 14,401,858,217.85/136,736.61
  6. Step 6: Final answer
    x = 105,325.55

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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.