Home / 104,816.39-144,667.09-66,620.43

Finding the Fourth Proportional to 104,816.39, 144,667.09 and 66,620.43

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Solution

The fourth proportional to 104,816.39, 144,667.09 and 66,620.43 is: 91,949.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,816.39 : 144,667.09 = 66,620.43 : x
  2. Step 2: Convert to fraction form
    104,816.39/144,667.09 = 66,620.43/x
  3. Step 3: Cross multiply
    104,816.39x = 144,667.09 × 66,620.43
  4. Step 4: Simplify right side
    104,816.39x = 9,637,783,825.92
  5. Step 5: Solve for x
    x = 9,637,783,825.92/104,816.39
  6. Step 6: Final answer
    x = 91,949.21

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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.