Home / 141,928.75-195,852.74-81,456.84

Finding the Fourth Proportional to 141,928.75, 195,852.74 and 81,456.84

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Solution

The fourth proportional to 141,928.75, 195,852.74 and 81,456.84 is: 112,405.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,928.75 : 195,852.74 = 81,456.84 : x
  2. Step 2: Convert to fraction form
    141,928.75/195,852.74 = 81,456.84/x
  3. Step 3: Cross multiply
    141,928.75x = 195,852.74 × 81,456.84
  4. Step 4: Simplify right side
    141,928.75x = 15,953,543,919.19
  5. Step 5: Solve for x
    x = 15,953,543,919.19/141,928.75
  6. Step 6: Final answer
    x = 112,405.30

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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.