Home / 223,143.03-307,860.41-142,617.69

Finding the Fourth Proportional to 223,143.03, 307,860.41 and 142,617.69

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Solution

The fourth proportional to 223,143.03, 307,860.41 and 142,617.69 is: 196,763.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,143.03 : 307,860.41 = 142,617.69 : x
  2. Step 2: Convert to fraction form
    223,143.03/307,860.41 = 142,617.69/x
  3. Step 3: Cross multiply
    223,143.03x = 307,860.41 × 142,617.69
  4. Step 4: Simplify right side
    223,143.03x = 43,906,339,803.56
  5. Step 5: Solve for x
    x = 43,906,339,803.56/223,143.03
  6. Step 6: Final answer
    x = 196,763.21

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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.