Home / 141,905.06-195,863.10-85,305.50

Finding the Fourth Proportional to 141,905.06, 195,863.10 and 85,305.50

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Solution

The fourth proportional to 141,905.06, 195,863.10 and 85,305.50 is: 117,742.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,905.06 : 195,863.10 = 85,305.50 : x
  2. Step 2: Convert to fraction form
    141,905.06/195,863.10 = 85,305.50/x
  3. Step 3: Cross multiply
    141,905.06x = 195,863.10 × 85,305.50
  4. Step 4: Simplify right side
    141,905.06x = 16,708,199,677.05
  5. Step 5: Solve for x
    x = 16,708,199,677.05/141,905.06
  6. Step 6: Final answer
    x = 117,742.10

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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.