Home / 189,645.60-261,708.96-104,757.12

Finding the Fourth Proportional to 189,645.60, 261,708.96 and 104,757.12

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Solution

The fourth proportional to 189,645.60, 261,708.96 and 104,757.12 is: 144,563.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,645.60 : 261,708.96 = 104,757.12 : x
  2. Step 2: Convert to fraction form
    189,645.60/261,708.96 = 104,757.12/x
  3. Step 3: Cross multiply
    189,645.60x = 261,708.96 × 104,757.12
  4. Step 4: Simplify right side
    189,645.60x = 27,415,876,927.80
  5. Step 5: Solve for x
    x = 27,415,876,927.80/189,645.60
  6. Step 6: Final answer
    x = 144,563.74

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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.