Home / 154,817.70-213,668.19-91,161.42

Finding the Fourth Proportional to 154,817.70, 213,668.19 and 91,161.42

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Solution

The fourth proportional to 154,817.70, 213,668.19 and 91,161.42 is: 125,814.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,817.70 : 213,668.19 = 91,161.42 : x
  2. Step 2: Convert to fraction form
    154,817.70/213,668.19 = 91,161.42/x
  3. Step 3: Cross multiply
    154,817.70x = 213,668.19 × 91,161.42
  4. Step 4: Simplify right side
    154,817.70x = 19,478,295,609.23
  5. Step 5: Solve for x
    x = 19,478,295,609.23/154,817.70
  6. Step 6: Final answer
    x = 125,814.40

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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.