Home / 140,050.05-193,285.41-79,629.75

Finding the Fourth Proportional to 140,050.05, 193,285.41 and 79,629.75

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Solution

The fourth proportional to 140,050.05, 193,285.41 and 79,629.75 is: 109,898.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,050.05 : 193,285.41 = 79,629.75 : x
  2. Step 2: Convert to fraction form
    140,050.05/193,285.41 = 79,629.75/x
  3. Step 3: Cross multiply
    140,050.05x = 193,285.41 × 79,629.75
  4. Step 4: Simplify right side
    140,050.05x = 15,391,269,175.56
  5. Step 5: Solve for x
    x = 15,391,269,175.56/140,050.05
  6. Step 6: Final answer
    x = 109,898.35

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1.5x scale

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.