Home / 141,040.36-194,641.14-77,380.84

Finding the Fourth Proportional to 141,040.36, 194,641.14 and 77,380.84

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Solution

The fourth proportional to 141,040.36, 194,641.14 and 77,380.84 is: 106,788.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,040.36 : 194,641.14 = 77,380.84 : x
  2. Step 2: Convert to fraction form
    141,040.36/194,641.14 = 77,380.84/x
  3. Step 3: Cross multiply
    141,040.36x = 194,641.14 × 77,380.84
  4. Step 4: Simplify right side
    141,040.36x = 15,061,494,911.76
  5. Step 5: Solve for x
    x = 15,061,494,911.76/141,040.36
  6. Step 6: Final answer
    x = 106,788.55

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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.