Home / 118,021.20-176,916.60-105,579.60

Finding the Fourth Proportional to 118,021.20, 176,916.60 and 105,579.60

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Solution

The fourth proportional to 118,021.20, 176,916.60 and 105,579.60 is: 158,266.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,021.20 : 176,916.60 = 105,579.60 : x
  2. Step 2: Convert to fraction form
    118,021.20/176,916.60 = 105,579.60/x
  3. Step 3: Cross multiply
    118,021.20x = 176,916.60 × 105,579.60
  4. Step 4: Simplify right side
    118,021.20x = 18,678,783,861.36
  5. Step 5: Solve for x
    x = 18,678,783,861.36/118,021.20
  6. Step 6: Final answer
    x = 158,266.34

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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.