Home / 189,838.13-261,901.26-109,222.26

Finding the Fourth Proportional to 189,838.13, 261,901.26 and 109,222.26

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Solution

The fourth proportional to 189,838.13, 261,901.26 and 109,222.26 is: 150,683.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,838.13 : 261,901.26 = 109,222.26 : x
  2. Step 2: Convert to fraction form
    189,838.13/261,901.26 = 109,222.26/x
  3. Step 3: Cross multiply
    189,838.13x = 261,901.26 × 109,222.26
  4. Step 4: Simplify right side
    189,838.13x = 28,605,447,514.05
  5. Step 5: Solve for x
    x = 28,605,447,514.05/189,838.13
  6. Step 6: Final answer
    x = 150,683.37

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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.