Home / 141,840.36-195,741.06-78,180.60

Finding the Fourth Proportional to 141,840.36, 195,741.06 and 78,180.60

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Solution

The fourth proportional to 141,840.36, 195,741.06 and 78,180.60 is: 107,889.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,840.36 : 195,741.06 = 78,180.60 : x
  2. Step 2: Convert to fraction form
    141,840.36/195,741.06 = 78,180.60/x
  3. Step 3: Cross multiply
    141,840.36x = 195,741.06 × 78,180.60
  4. Step 4: Simplify right side
    141,840.36x = 15,303,153,515.44
  5. Step 5: Solve for x
    x = 15,303,153,515.44/141,840.36
  6. Step 6: Final answer
    x = 107,889.98

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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.