Home / 140,285.30-193,543.41-82,912.58

Finding the Fourth Proportional to 140,285.30, 193,543.41 and 82,912.58

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Solution

The fourth proportional to 140,285.30, 193,543.41 and 82,912.58 is: 114,389.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,285.30 : 193,543.41 = 82,912.58 : x
  2. Step 2: Convert to fraction form
    140,285.30/193,543.41 = 82,912.58/x
  3. Step 3: Cross multiply
    140,285.30x = 193,543.41 × 82,912.58
  4. Step 4: Simplify right side
    140,285.30x = 16,047,183,465.10
  5. Step 5: Solve for x
    x = 16,047,183,465.10/140,285.30
  6. Step 6: Final answer
    x = 114,389.63

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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.