Home / 189,825.48-261,951.03-109,198.08

Finding the Fourth Proportional to 189,825.48, 261,951.03 and 109,198.08

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Solution

The fourth proportional to 189,825.48, 261,951.03 and 109,198.08 is: 150,688.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,825.48 : 261,951.03 = 109,198.08 : x
  2. Step 2: Convert to fraction form
    189,825.48/261,951.03 = 109,198.08/x
  3. Step 3: Cross multiply
    189,825.48x = 261,951.03 × 109,198.08
  4. Step 4: Simplify right side
    189,825.48x = 28,604,549,530.02
  5. Step 5: Solve for x
    x = 28,604,549,530.02/189,825.48
  6. Step 6: Final answer
    x = 150,688.67

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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.