Home / 143,533.86-198,073.62-83,107.14

Finding the Fourth Proportional to 143,533.86, 198,073.62 and 83,107.14

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Solution

The fourth proportional to 143,533.86, 198,073.62 and 83,107.14 is: 114,686.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,533.86 : 198,073.62 = 83,107.14 : x
  2. Step 2: Convert to fraction form
    143,533.86/198,073.62 = 83,107.14/x
  3. Step 3: Cross multiply
    143,533.86x = 198,073.62 × 83,107.14
  4. Step 4: Simplify right side
    143,533.86x = 16,461,332,067.65
  5. Step 5: Solve for x
    x = 16,461,332,067.65/143,533.86
  6. Step 6: Final answer
    x = 114,686.05

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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.