Home / 189,588.13-261,645.40-109,040.92

Finding the Fourth Proportional to 189,588.13, 261,645.40 and 109,040.92

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Solution

The fourth proportional to 189,588.13, 261,645.40 and 109,040.92 is: 150,484.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,588.13 : 261,645.40 = 109,040.92 : x
  2. Step 2: Convert to fraction form
    189,588.13/261,645.40 = 109,040.92/x
  3. Step 3: Cross multiply
    189,588.13x = 261,645.40 × 109,040.92
  4. Step 4: Simplify right side
    189,588.13x = 28,530,055,129.77
  5. Step 5: Solve for x
    x = 28,530,055,129.77/189,588.13
  6. Step 6: Final answer
    x = 150,484.40

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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.