Home / 154,556.56-213,285.57-86,573.38

Finding the Fourth Proportional to 154,556.56, 213,285.57 and 86,573.38

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Solution

The fourth proportional to 154,556.56, 213,285.57 and 86,573.38 is: 119,469.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,556.56 : 213,285.57 = 86,573.38 : x
  2. Step 2: Convert to fraction form
    154,556.56/213,285.57 = 86,573.38/x
  3. Step 3: Cross multiply
    154,556.56x = 213,285.57 × 86,573.38
  4. Step 4: Simplify right side
    154,556.56x = 18,464,852,700.13
  5. Step 5: Solve for x
    x = 18,464,852,700.13/154,556.56
  6. Step 6: Final answer
    x = 119,469.87

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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.