Home / 129,338.28-194,188.86-105,751.08

Finding the Fourth Proportional to 129,338.28, 194,188.86 and 105,751.08

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Solution

The fourth proportional to 129,338.28, 194,188.86 and 105,751.08 is: 158,774.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,338.28 : 194,188.86 = 105,751.08 : x
  2. Step 2: Convert to fraction form
    129,338.28/194,188.86 = 105,751.08/x
  3. Step 3: Cross multiply
    129,338.28x = 194,188.86 × 105,751.08
  4. Step 4: Simplify right side
    129,338.28x = 20,535,681,668.97
  5. Step 5: Solve for x
    x = 20,535,681,668.97/129,338.28
  6. Step 6: Final answer
    x = 158,774.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.