Home / 139,736.35-192,839.61-76,077.64

Finding the Fourth Proportional to 139,736.35, 192,839.61 and 76,077.64

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Solution

The fourth proportional to 139,736.35, 192,839.61 and 76,077.64 is: 104,989.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,736.35 : 192,839.61 = 76,077.64 : x
  2. Step 2: Convert to fraction form
    139,736.35/192,839.61 = 76,077.64/x
  3. Step 3: Cross multiply
    139,736.35x = 192,839.61 × 76,077.64
  4. Step 4: Simplify right side
    139,736.35x = 14,670,782,427.32
  5. Step 5: Solve for x
    x = 14,670,782,427.32/139,736.35
  6. Step 6: Final answer
    x = 104,989.02

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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.