Home / 143,172.66-197,546.94-86,582.82

Finding the Fourth Proportional to 143,172.66, 197,546.94 and 86,582.82

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Solution

The fourth proportional to 143,172.66, 197,546.94 and 86,582.82 is: 119,465.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,172.66 : 197,546.94 = 86,582.82 : x
  2. Step 2: Convert to fraction form
    143,172.66/197,546.94 = 86,582.82/x
  3. Step 3: Cross multiply
    143,172.66x = 197,546.94 × 86,582.82
  4. Step 4: Simplify right side
    143,172.66x = 17,104,171,147.57
  5. Step 5: Solve for x
    x = 17,104,171,147.57/143,172.66
  6. Step 6: Final answer
    x = 119,465.34

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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.