Home / 119,019.21-164,218.50-107,991.87

Finding the Fourth Proportional to 119,019.21, 164,218.50 and 107,991.87

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Solution

The fourth proportional to 119,019.21, 164,218.50 and 107,991.87 is: 149,003.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,019.21 : 164,218.50 = 107,991.87 : x
  2. Step 2: Convert to fraction form
    119,019.21/164,218.50 = 107,991.87/x
  3. Step 3: Cross multiply
    119,019.21x = 164,218.50 × 107,991.87
  4. Step 4: Simplify right side
    119,019.21x = 17,734,262,903.60
  5. Step 5: Solve for x
    x = 17,734,262,903.60/119,019.21
  6. Step 6: Final answer
    x = 149,003.37

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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.