Home / 139,738.34-192,832.86-76,076.36

Finding the Fourth Proportional to 139,738.34, 192,832.86 and 76,076.36

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Solution

The fourth proportional to 139,738.34, 192,832.86 and 76,076.36 is: 104,982.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,738.34 : 192,832.86 = 76,076.36 : x
  2. Step 2: Convert to fraction form
    139,738.34/192,832.86 = 76,076.36/x
  3. Step 3: Cross multiply
    139,738.34x = 192,832.86 × 76,076.36
  4. Step 4: Simplify right side
    139,738.34x = 14,670,022,077.19
  5. Step 5: Solve for x
    x = 14,670,022,077.19/139,738.34
  6. Step 6: Final answer
    x = 104,982.08

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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.