Home / 141,678.30-195,517.32-78,016.34

Finding the Fourth Proportional to 141,678.30, 195,517.32 and 78,016.34

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Solution

The fourth proportional to 141,678.30, 195,517.32 and 78,016.34 is: 107,663.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,678.30 : 195,517.32 = 78,016.34 : x
  2. Step 2: Convert to fraction form
    141,678.30/195,517.32 = 78,016.34/x
  3. Step 3: Cross multiply
    141,678.30x = 195,517.32 × 78,016.34
  4. Step 4: Simplify right side
    141,678.30x = 15,253,545,713.01
  5. Step 5: Solve for x
    x = 15,253,545,713.01/141,678.30
  6. Step 6: Final answer
    x = 107,663.25

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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.