Home / 189,628.03-261,687.56-103,588.21

Finding the Fourth Proportional to 189,628.03, 261,687.56 and 103,588.21

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Solution

The fourth proportional to 189,628.03, 261,687.56 and 103,588.21 is: 142,952.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,628.03 : 261,687.56 = 103,588.21 : x
  2. Step 2: Convert to fraction form
    189,628.03/261,687.56 = 103,588.21/x
  3. Step 3: Cross multiply
    189,628.03x = 261,687.56 × 103,588.21
  4. Step 4: Simplify right side
    189,628.03x = 27,107,744,611.23
  5. Step 5: Solve for x
    x = 27,107,744,611.23/189,628.03
  6. Step 6: Final answer
    x = 142,952.21

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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.