Home / 120,022.62-165,634.56-66,311.10

Finding the Fourth Proportional to 120,022.62, 165,634.56 and 66,311.10

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Solution

The fourth proportional to 120,022.62, 165,634.56 and 66,311.10 is: 91,511.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,022.62 : 165,634.56 = 66,311.10 : x
  2. Step 2: Convert to fraction form
    120,022.62/165,634.56 = 66,311.10/x
  3. Step 3: Cross multiply
    120,022.62x = 165,634.56 × 66,311.10
  4. Step 4: Simplify right side
    120,022.62x = 10,983,409,871.62
  5. Step 5: Solve for x
    x = 10,983,409,871.62/120,022.62
  6. Step 6: Final answer
    x = 91,511.17

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1.5x scale

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.