Home / 190,649.92-263,104.32-105,770.56

Finding the Fourth Proportional to 190,649.92, 263,104.32 and 105,770.56

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Solution

The fourth proportional to 190,649.92, 263,104.32 and 105,770.56 is: 145,967.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,649.92 : 263,104.32 = 105,770.56 : x
  2. Step 2: Convert to fraction form
    190,649.92/263,104.32 = 105,770.56/x
  3. Step 3: Cross multiply
    190,649.92x = 263,104.32 × 105,770.56
  4. Step 4: Simplify right side
    190,649.92x = 27,828,691,264.82
  5. Step 5: Solve for x
    x = 27,828,691,264.82/190,649.92
  6. Step 6: Final answer
    x = 145,967.50

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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.