Home / 141,667.44-195,501.78-81,240.36

Finding the Fourth Proportional to 141,667.44, 195,501.78 and 81,240.36

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Solution

The fourth proportional to 141,667.44, 195,501.78 and 81,240.36 is: 112,112.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,667.44 : 195,501.78 = 81,240.36 : x
  2. Step 2: Convert to fraction form
    141,667.44/195,501.78 = 81,240.36/x
  3. Step 3: Cross multiply
    141,667.44x = 195,501.78 × 81,240.36
  4. Step 4: Simplify right side
    141,667.44x = 15,882,634,987.84
  5. Step 5: Solve for x
    x = 15,882,634,987.84/141,667.44
  6. Step 6: Final answer
    x = 112,112.11

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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.