Home / 139,090.22-191,942.82-75,427.26

Finding the Fourth Proportional to 139,090.22, 191,942.82 and 75,427.26

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Solution

The fourth proportional to 139,090.22, 191,942.82 and 75,427.26 is: 104,088.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,090.22 : 191,942.82 = 75,427.26 : x
  2. Step 2: Convert to fraction form
    139,090.22/191,942.82 = 75,427.26/x
  3. Step 3: Cross multiply
    139,090.22x = 191,942.82 × 75,427.26
  4. Step 4: Simplify right side
    139,090.22x = 14,477,720,989.27
  5. Step 5: Solve for x
    x = 14,477,720,989.27/139,090.22
  6. Step 6: Final answer
    x = 104,088.71

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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.