Home / 141,845.03-195,742.67-78,181.43

Finding the Fourth Proportional to 141,845.03, 195,742.67 and 78,181.43

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Solution

The fourth proportional to 141,845.03, 195,742.67 and 78,181.43 is: 107,888.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,845.03 : 195,742.67 = 78,181.43 : x
  2. Step 2: Convert to fraction form
    141,845.03/195,742.67 = 78,181.43/x
  3. Step 3: Cross multiply
    141,845.03x = 195,742.67 × 78,181.43
  4. Step 4: Simplify right side
    141,845.03x = 15,303,441,069.36
  5. Step 5: Solve for x
    x = 15,303,441,069.36/141,845.03
  6. Step 6: Final answer
    x = 107,888.46

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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.