Home / 153,936.36-212,435.78-85,951.03

Finding the Fourth Proportional to 153,936.36, 212,435.78 and 85,951.03

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Solution

The fourth proportional to 153,936.36, 212,435.78 and 85,951.03 is: 118,614.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,936.36 : 212,435.78 = 85,951.03 : x
  2. Step 2: Convert to fraction form
    153,936.36/212,435.78 = 85,951.03/x
  3. Step 3: Cross multiply
    153,936.36x = 212,435.78 × 85,951.03
  4. Step 4: Simplify right side
    153,936.36x = 18,259,073,670.10
  5. Step 5: Solve for x
    x = 18,259,073,670.10/153,936.36
  6. Step 6: Final answer
    x = 118,614.43

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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.