Home / 154,529.54-213,226.40-90,009.39

Finding the Fourth Proportional to 154,529.54, 213,226.40 and 90,009.39

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Solution

The fourth proportional to 154,529.54, 213,226.40 and 90,009.39 is: 124,198.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,529.54 : 213,226.40 = 90,009.39 : x
  2. Step 2: Convert to fraction form
    154,529.54/213,226.40 = 90,009.39/x
  3. Step 3: Cross multiply
    154,529.54x = 213,226.40 × 90,009.39
  4. Step 4: Simplify right side
    154,529.54x = 19,192,377,745.85
  5. Step 5: Solve for x
    x = 19,192,377,745.85/154,529.54
  6. Step 6: Final answer
    x = 124,198.77

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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.