Home / 141,009.90-194,603.56-80,589.48

Finding the Fourth Proportional to 141,009.90, 194,603.56 and 80,589.48

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Solution

The fourth proportional to 141,009.90, 194,603.56 and 80,589.48 is: 111,219.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,009.90 : 194,603.56 = 80,589.48 : x
  2. Step 2: Convert to fraction form
    141,009.90/194,603.56 = 80,589.48/x
  3. Step 3: Cross multiply
    141,009.90x = 194,603.56 × 80,589.48
  4. Step 4: Simplify right side
    141,009.90x = 15,682,999,706.55
  5. Step 5: Solve for x
    x = 15,682,999,706.55/141,009.90
  6. Step 6: Final answer
    x = 111,219.14

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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.