Home / 154,553.37-213,286.35-86,569.77

Finding the Fourth Proportional to 154,553.37, 213,286.35 and 86,569.77

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Solution

The fourth proportional to 154,553.37, 213,286.35 and 86,569.77 is: 119,467.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,553.37 : 213,286.35 = 86,569.77 : x
  2. Step 2: Convert to fraction form
    154,553.37/213,286.35 = 86,569.77/x
  3. Step 3: Cross multiply
    154,553.37x = 213,286.35 × 86,569.77
  4. Step 4: Simplify right side
    154,553.37x = 18,464,150,263.64
  5. Step 5: Solve for x
    x = 18,464,150,263.64/154,553.37
  6. Step 6: Final answer
    x = 119,467.79

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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.