Home / 141,638.67-195,453.95-77,964.03

Finding the Fourth Proportional to 141,638.67, 195,453.95 and 77,964.03

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Solution

The fourth proportional to 141,638.67, 195,453.95 and 77,964.03 is: 107,586.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,638.67 : 195,453.95 = 77,964.03 : x
  2. Step 2: Convert to fraction form
    141,638.67/195,453.95 = 77,964.03/x
  3. Step 3: Cross multiply
    141,638.67x = 195,453.95 × 77,964.03
  4. Step 4: Simplify right side
    141,638.67x = 15,238,377,231.60
  5. Step 5: Solve for x
    x = 15,238,377,231.60/141,638.67
  6. Step 6: Final answer
    x = 107,586.28

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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.