Home / 78,786.66-118,180.01-26,196.60

Finding the Fourth Proportional to 78,786.66, 118,180.01 and 26,196.60

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Solution

The fourth proportional to 78,786.66, 118,180.01 and 26,196.60 is: 39,294.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,786.66 : 118,180.01 = 26,196.60 : x
  2. Step 2: Convert to fraction form
    78,786.66/118,180.01 = 26,196.60/x
  3. Step 3: Cross multiply
    78,786.66x = 118,180.01 × 26,196.60
  4. Step 4: Simplify right side
    78,786.66x = 3,095,914,318.98
  5. Step 5: Solve for x
    x = 3,095,914,318.98/78,786.66
  6. Step 6: Final answer
    x = 39,294.90

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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.