Home / 186,938.62-279,915.85-111,880.78

Finding the Fourth Proportional to 186,938.62, 279,915.85 and 111,880.78

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Solution

The fourth proportional to 186,938.62, 279,915.85 and 111,880.78 is: 167,526.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,938.62 : 279,915.85 = 111,880.78 : x
  2. Step 2: Convert to fraction form
    186,938.62/279,915.85 = 111,880.78/x
  3. Step 3: Cross multiply
    186,938.62x = 279,915.85 × 111,880.78
  4. Step 4: Simplify right side
    186,938.62x = 31,317,203,072.42
  5. Step 5: Solve for x
    x = 31,317,203,072.42/186,938.62
  6. Step 6: Final answer
    x = 167,526.66

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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.