Home / 149,317.30-206,054.31-85,651.03

Finding the Fourth Proportional to 149,317.30, 206,054.31 and 85,651.03

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Solution

The fourth proportional to 149,317.30, 206,054.31 and 85,651.03 is: 118,196.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,317.30 : 206,054.31 = 85,651.03 : x
  2. Step 2: Convert to fraction form
    149,317.30/206,054.31 = 85,651.03/x
  3. Step 3: Cross multiply
    149,317.30x = 206,054.31 × 85,651.03
  4. Step 4: Simplify right side
    149,317.30x = 17,648,763,887.44
  5. Step 5: Solve for x
    x = 17,648,763,887.44/149,317.30
  6. Step 6: Final answer
    x = 118,196.38

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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.