Home / 141,687.36-195,445.44-85,112.64

Finding the Fourth Proportional to 141,687.36, 195,445.44 and 85,112.64

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Solution

The fourth proportional to 141,687.36, 195,445.44 and 85,112.64 is: 117,405.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,687.36 : 195,445.44 = 85,112.64 : x
  2. Step 2: Convert to fraction form
    141,687.36/195,445.44 = 85,112.64/x
  3. Step 3: Cross multiply
    141,687.36x = 195,445.44 × 85,112.64
  4. Step 4: Simplify right side
    141,687.36x = 16,634,877,374.36
  5. Step 5: Solve for x
    x = 16,634,877,374.36/141,687.36
  6. Step 6: Final answer
    x = 117,405.51

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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.