Home / 118,121.34-177,265.02-106,828.20

Finding the Fourth Proportional to 118,121.34, 177,265.02 and 106,828.20

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Solution

The fourth proportional to 118,121.34, 177,265.02 and 106,828.20 is: 160,317.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,121.34 : 177,265.02 = 106,828.20 : x
  2. Step 2: Convert to fraction form
    118,121.34/177,265.02 = 106,828.20/x
  3. Step 3: Cross multiply
    118,121.34x = 177,265.02 × 106,828.20
  4. Step 4: Simplify right side
    118,121.34x = 18,936,903,009.56
  5. Step 5: Solve for x
    x = 18,936,903,009.56/118,121.34
  6. Step 6: Final answer
    x = 160,317.37

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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.