Home / 153,039.78-211,181.45-85,052.48

Finding the Fourth Proportional to 153,039.78, 211,181.45 and 85,052.48

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Solution

The fourth proportional to 153,039.78, 211,181.45 and 85,052.48 is: 117,364.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,039.78 : 211,181.45 = 85,052.48 : x
  2. Step 2: Convert to fraction form
    153,039.78/211,181.45 = 85,052.48/x
  3. Step 3: Cross multiply
    153,039.78x = 211,181.45 × 85,052.48
  4. Step 4: Simplify right side
    153,039.78x = 17,961,504,571.33
  5. Step 5: Solve for x
    x = 17,961,504,571.33/153,039.78
  6. Step 6: Final answer
    x = 117,364.94

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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.