Home / 154,680.96-213,477.39-86,716.26

Finding the Fourth Proportional to 154,680.96, 213,477.39 and 86,716.26

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Solution

The fourth proportional to 154,680.96, 213,477.39 and 86,716.26 is: 119,678.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,680.96 : 213,477.39 = 86,716.26 : x
  2. Step 2: Convert to fraction form
    154,680.96/213,477.39 = 86,716.26/x
  3. Step 3: Cross multiply
    154,680.96x = 213,477.39 × 86,716.26
  4. Step 4: Simplify right side
    154,680.96x = 18,511,960,855.36
  5. Step 5: Solve for x
    x = 18,511,960,855.36/154,680.96
  6. Step 6: Final answer
    x = 119,678.34

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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.