Home / 143,796.07-198,453.41-86,454.14

Finding the Fourth Proportional to 143,796.07, 198,453.41 and 86,454.14

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Solution

The fourth proportional to 143,796.07, 198,453.41 and 86,454.14 is: 119,315.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,796.07 : 198,453.41 = 86,454.14 : x
  2. Step 2: Convert to fraction form
    143,796.07/198,453.41 = 86,454.14/x
  3. Step 3: Cross multiply
    143,796.07x = 198,453.41 × 86,454.14
  4. Step 4: Simplify right side
    143,796.07x = 17,157,118,907.58
  5. Step 5: Solve for x
    x = 17,157,118,907.58/143,796.07
  6. Step 6: Final answer
    x = 119,315.64

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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.