Home / 154,481.92-213,188.99-86,513.24

Finding the Fourth Proportional to 154,481.92, 213,188.99 and 86,513.24

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Solution

The fourth proportional to 154,481.92, 213,188.99 and 86,513.24 is: 119,390.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,481.92 : 213,188.99 = 86,513.24 : x
  2. Step 2: Convert to fraction form
    154,481.92/213,188.99 = 86,513.24/x
  3. Step 3: Cross multiply
    154,481.92x = 213,188.99 × 86,513.24
  4. Step 4: Simplify right side
    154,481.92x = 18,443,670,357.63
  5. Step 5: Solve for x
    x = 18,443,670,357.63/154,481.92
  6. Step 6: Final answer
    x = 119,390.48

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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.