Home / 185,552.78-278,290.89-90,685.58

Finding the Fourth Proportional to 185,552.78, 278,290.89 and 90,685.58

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Solution

The fourth proportional to 185,552.78, 278,290.89 and 90,685.58 is: 136,009.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,552.78 : 278,290.89 = 90,685.58 : x
  2. Step 2: Convert to fraction form
    185,552.78/278,290.89 = 90,685.58/x
  3. Step 3: Cross multiply
    185,552.78x = 278,290.89 × 90,685.58
  4. Step 4: Simplify right side
    185,552.78x = 25,236,970,768.37
  5. Step 5: Solve for x
    x = 25,236,970,768.37/185,552.78
  6. Step 6: Final answer
    x = 136,009.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.