Home / 118,368.70-177,553.05-74,131.90

Finding the Fourth Proportional to 118,368.70, 177,553.05 and 74,131.90

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Solution

The fourth proportional to 118,368.70, 177,553.05 and 74,131.90 is: 111,197.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,368.70 : 177,553.05 = 74,131.90 : x
  2. Step 2: Convert to fraction form
    118,368.70/177,553.05 = 74,131.90/x
  3. Step 3: Cross multiply
    118,368.70x = 177,553.05 × 74,131.90
  4. Step 4: Simplify right side
    118,368.70x = 13,162,344,947.30
  5. Step 5: Solve for x
    x = 13,162,344,947.30/118,368.70
  6. Step 6: Final answer
    x = 111,197.85

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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.