Home / 141,171.82-194,821.08-77,512.30

Finding the Fourth Proportional to 141,171.82, 194,821.08 and 77,512.30

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Solution

The fourth proportional to 141,171.82, 194,821.08 and 77,512.30 is: 106,969.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,171.82 : 194,821.08 = 77,512.30 : x
  2. Step 2: Convert to fraction form
    141,171.82/194,821.08 = 77,512.30/x
  3. Step 3: Cross multiply
    141,171.82x = 194,821.08 × 77,512.30
  4. Step 4: Simplify right side
    141,171.82x = 15,101,029,999.28
  5. Step 5: Solve for x
    x = 15,101,029,999.28/141,171.82
  6. Step 6: Final answer
    x = 106,969.15

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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.