Home / 86,269.68-118,416.06-76,627.44

Finding the Fourth Proportional to 86,269.68, 118,416.06 and 76,627.44

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Solution

The fourth proportional to 86,269.68, 118,416.06 and 76,627.44 is: 105,180.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,269.68 : 118,416.06 = 76,627.44 : x
  2. Step 2: Convert to fraction form
    86,269.68/118,416.06 = 76,627.44/x
  3. Step 3: Cross multiply
    86,269.68x = 118,416.06 × 76,627.44
  4. Step 4: Simplify right side
    86,269.68x = 9,073,919,532.69
  5. Step 5: Solve for x
    x = 9,073,919,532.69/86,269.68
  6. Step 6: Final answer
    x = 105,180.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.