Home / 141,986.34-195,941.13-78,324.12

Finding the Fourth Proportional to 141,986.34, 195,941.13 and 78,324.12

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Solution

The fourth proportional to 141,986.34, 195,941.13 and 78,324.12 is: 108,087.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,986.34 : 195,941.13 = 78,324.12 : x
  2. Step 2: Convert to fraction form
    141,986.34/195,941.13 = 78,324.12/x
  3. Step 3: Cross multiply
    141,986.34x = 195,941.13 × 78,324.12
  4. Step 4: Simplify right side
    141,986.34x = 15,346,916,579.06
  5. Step 5: Solve for x
    x = 15,346,916,579.06/141,986.34
  6. Step 6: Final answer
    x = 108,087.28

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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.