Home / 141,836.76-195,734.14-78,174.54

Finding the Fourth Proportional to 141,836.76, 195,734.14 and 78,174.54

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Solution

The fourth proportional to 141,836.76, 195,734.14 and 78,174.54 is: 107,880.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,836.76 : 195,734.14 = 78,174.54 : x
  2. Step 2: Convert to fraction form
    141,836.76/195,734.14 = 78,174.54/x
  3. Step 3: Cross multiply
    141,836.76x = 195,734.14 × 78,174.54
  4. Step 4: Simplify right side
    141,836.76x = 15,301,426,161.36
  5. Step 5: Solve for x
    x = 15,301,426,161.36/141,836.76
  6. Step 6: Final answer
    x = 107,880.54

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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.