Home / 78,786.25-118,180.41-26,195.74

Finding the Fourth Proportional to 78,786.25, 118,180.41 and 26,195.74

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Solution

The fourth proportional to 78,786.25, 118,180.41 and 26,195.74 is: 39,293.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,786.25 : 118,180.41 = 26,195.74 : x
  2. Step 2: Convert to fraction form
    78,786.25/118,180.41 = 26,195.74/x
  3. Step 3: Cross multiply
    78,786.25x = 118,180.41 × 26,195.74
  4. Step 4: Simplify right side
    78,786.25x = 3,095,822,571.57
  5. Step 5: Solve for x
    x = 3,095,822,571.57/78,786.25
  6. Step 6: Final answer
    x = 39,293.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.