Home / 190,319.82-262,669.30-109,731.56

Finding the Fourth Proportional to 190,319.82, 262,669.30 and 109,731.56

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Solution

The fourth proportional to 190,319.82, 262,669.30 and 109,731.56 is: 151,445.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,319.82 : 262,669.30 = 109,731.56 : x
  2. Step 2: Convert to fraction form
    190,319.82/262,669.30 = 109,731.56/x
  3. Step 3: Cross multiply
    190,319.82x = 262,669.30 × 109,731.56
  4. Step 4: Simplify right side
    190,319.82x = 28,823,112,053.11
  5. Step 5: Solve for x
    x = 28,823,112,053.11/190,319.82
  6. Step 6: Final answer
    x = 151,445.67

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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.