Home / 201,775.49-278,451.95-111,134.57

Finding the Fourth Proportional to 201,775.49, 278,451.95 and 111,134.57

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Solution

The fourth proportional to 201,775.49, 278,451.95 and 111,134.57 is: 153,366.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,775.49 : 278,451.95 = 111,134.57 : x
  2. Step 2: Convert to fraction form
    201,775.49/278,451.95 = 111,134.57/x
  3. Step 3: Cross multiply
    201,775.49x = 278,451.95 × 111,134.57
  4. Step 4: Simplify right side
    201,775.49x = 30,945,635,780.98
  5. Step 5: Solve for x
    x = 30,945,635,780.98/201,775.49
  6. Step 6: Final answer
    x = 153,366.67

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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.