Home / 243,571.25-336,105.23-136,138.82

Finding the Fourth Proportional to 243,571.25, 336,105.23 and 136,138.82

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Solution

The fourth proportional to 243,571.25, 336,105.23 and 136,138.82 is: 187,858.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,571.25 : 336,105.23 = 136,138.82 : x
  2. Step 2: Convert to fraction form
    243,571.25/336,105.23 = 136,138.82/x
  3. Step 3: Cross multiply
    243,571.25x = 336,105.23 × 136,138.82
  4. Step 4: Simplify right side
    243,571.25x = 45,756,969,408.03
  5. Step 5: Solve for x
    x = 45,756,969,408.03/243,571.25
  6. Step 6: Final answer
    x = 187,858.67

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1.5x scale

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.