Home / 104,226.12-143,756.10-65,991.90

Finding the Fourth Proportional to 104,226.12, 143,756.10 and 65,991.90

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Solution

The fourth proportional to 104,226.12, 143,756.10 and 65,991.90 is: 91,020.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,226.12 : 143,756.10 = 65,991.90 : x
  2. Step 2: Convert to fraction form
    104,226.12/143,756.10 = 65,991.90/x
  3. Step 3: Cross multiply
    104,226.12x = 143,756.10 × 65,991.90
  4. Step 4: Simplify right side
    104,226.12x = 9,486,738,175.59
  5. Step 5: Solve for x
    x = 9,486,738,175.59/104,226.12
  6. Step 6: Final answer
    x = 91,020.74

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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.