Home / 154,824.18-213,678.99-111,942.78

Finding the Fourth Proportional to 154,824.18, 213,678.99 and 111,942.78

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Solution

The fourth proportional to 154,824.18, 213,678.99 and 111,942.78 is: 154,496.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,824.18 : 213,678.99 = 111,942.78 : x
  2. Step 2: Convert to fraction form
    154,824.18/213,678.99 = 111,942.78/x
  3. Step 3: Cross multiply
    154,824.18x = 213,678.99 × 111,942.78
  4. Step 4: Simplify right side
    154,824.18x = 23,919,820,168.19
  5. Step 5: Solve for x
    x = 23,919,820,168.19/154,824.18
  6. Step 6: Final answer
    x = 154,496.67

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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.