Home / 154,623.90-213,377.37-90,965.80

Finding the Fourth Proportional to 154,623.90, 213,377.37 and 90,965.80

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Solution

The fourth proportional to 154,623.90, 213,377.37 and 90,965.80 is: 125,530.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,623.90 : 213,377.37 = 90,965.80 : x
  2. Step 2: Convert to fraction form
    154,623.90/213,377.37 = 90,965.80/x
  3. Step 3: Cross multiply
    154,623.90x = 213,377.37 × 90,965.80
  4. Step 4: Simplify right side
    154,623.90x = 19,410,042,097.06
  5. Step 5: Solve for x
    x = 19,410,042,097.06/154,623.90
  6. Step 6: Final answer
    x = 125,530.67

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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.