Home / 189,743.28-261,845.64-104,859.60

Finding the Fourth Proportional to 189,743.28, 261,845.64 and 104,859.60

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Solution

The fourth proportional to 189,743.28, 261,845.64 and 104,859.60 is: 144,706.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,743.28 : 261,845.64 = 104,859.60 : x
  2. Step 2: Convert to fraction form
    189,743.28/261,845.64 = 104,859.60/x
  3. Step 3: Cross multiply
    189,743.28x = 261,845.64 × 104,859.60
  4. Step 4: Simplify right side
    189,743.28x = 27,457,029,072.14
  5. Step 5: Solve for x
    x = 27,457,029,072.14/189,743.28
  6. Step 6: Final answer
    x = 144,706.20

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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.