Home / 189,990.82-262,195.05-105,106.42

Finding the Fourth Proportional to 189,990.82, 262,195.05 and 105,106.42

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Solution

The fourth proportional to 189,990.82, 262,195.05 and 105,106.42 is: 145,051.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,990.82 : 262,195.05 = 105,106.42 : x
  2. Step 2: Convert to fraction form
    189,990.82/262,195.05 = 105,106.42/x
  3. Step 3: Cross multiply
    189,990.82x = 262,195.05 × 105,106.42
  4. Step 4: Simplify right side
    189,990.82x = 27,558,383,047.22
  5. Step 5: Solve for x
    x = 27,558,383,047.22/189,990.82
  6. Step 6: Final answer
    x = 145,051.13

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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.