Home / 149,096.98-205,749.15-81,112.22

Finding the Fourth Proportional to 149,096.98, 205,749.15 and 81,112.22

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Solution

The fourth proportional to 149,096.98, 205,749.15 and 81,112.22 is: 111,932.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,096.98 : 205,749.15 = 81,112.22 : x
  2. Step 2: Convert to fraction form
    149,096.98/205,749.15 = 81,112.22/x
  3. Step 3: Cross multiply
    149,096.98x = 205,749.15 × 81,112.22
  4. Step 4: Simplify right side
    149,096.98x = 16,688,769,758.26
  5. Step 5: Solve for x
    x = 16,688,769,758.26/149,096.98
  6. Step 6: Final answer
    x = 111,932.31

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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.