Home / 141,949.13-212,915.29-53,195.21

Finding the Fourth Proportional to 141,949.13, 212,915.29 and 53,195.21

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Solution

The fourth proportional to 141,949.13, 212,915.29 and 53,195.21 is: 79,789.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,949.13 : 212,915.29 = 53,195.21 : x
  2. Step 2: Convert to fraction form
    141,949.13/212,915.29 = 53,195.21/x
  3. Step 3: Cross multiply
    141,949.13x = 212,915.29 × 53,195.21
  4. Step 4: Simplify right side
    141,949.13x = 11,326,073,563.76
  5. Step 5: Solve for x
    x = 11,326,073,563.76/141,949.13
  6. Step 6: Final answer
    x = 79,789.67

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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.