Home / 141,975.30-212,782.05-75,447.30

Finding the Fourth Proportional to 141,975.30, 212,782.05 and 75,447.30

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Solution

The fourth proportional to 141,975.30, 212,782.05 and 75,447.30 is: 113,074.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,975.30 : 212,782.05 = 75,447.30 : x
  2. Step 2: Convert to fraction form
    141,975.30/212,782.05 = 75,447.30/x
  3. Step 3: Cross multiply
    141,975.30x = 212,782.05 × 75,447.30
  4. Step 4: Simplify right side
    141,975.30x = 16,053,831,160.97
  5. Step 5: Solve for x
    x = 16,053,831,160.97/141,975.30
  6. Step 6: Final answer
    x = 113,074.82

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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.