Home / 141,886.82-195,805.32-78,226.90

Finding the Fourth Proportional to 141,886.82, 195,805.32 and 78,226.90

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Solution

The fourth proportional to 141,886.82, 195,805.32 and 78,226.90 is: 107,953.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,886.82 : 195,805.32 = 78,226.90 : x
  2. Step 2: Convert to fraction form
    141,886.82/195,805.32 = 78,226.90/x
  3. Step 3: Cross multiply
    141,886.82x = 195,805.32 × 78,226.90
  4. Step 4: Simplify right side
    141,886.82x = 15,317,243,187.11
  5. Step 5: Solve for x
    x = 15,317,243,187.11/141,886.82
  6. Step 6: Final answer
    x = 107,953.95

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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.