Home / 154,664.68-213,439.79-86,696.77

Finding the Fourth Proportional to 154,664.68, 213,439.79 and 86,696.77

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Solution

The fourth proportional to 154,664.68, 213,439.79 and 86,696.77 is: 119,642.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,664.68 : 213,439.79 = 86,696.77 : x
  2. Step 2: Convert to fraction form
    154,664.68/213,439.79 = 86,696.77/x
  3. Step 3: Cross multiply
    154,664.68x = 213,439.79 × 86,696.77
  4. Step 4: Simplify right side
    154,664.68x = 18,504,540,482.59
  5. Step 5: Solve for x
    x = 18,504,540,482.59/154,664.68
  6. Step 6: Final answer
    x = 119,642.96

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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.