Home / 185,910.69-256,556.06-105,353.56

Finding the Fourth Proportional to 185,910.69, 256,556.06 and 105,353.56

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Solution

The fourth proportional to 185,910.69, 256,556.06 and 105,353.56 is: 145,387.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,910.69 : 256,556.06 = 105,353.56 : x
  2. Step 2: Convert to fraction form
    185,910.69/256,556.06 = 105,353.56/x
  3. Step 3: Cross multiply
    185,910.69x = 256,556.06 × 105,353.56
  4. Step 4: Simplify right side
    185,910.69x = 27,029,094,449.58
  5. Step 5: Solve for x
    x = 27,029,094,449.58/185,910.69
  6. Step 6: Final answer
    x = 145,387.52

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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.