Home / 149,548.47-206,408.82-85,921.35

Finding the Fourth Proportional to 149,548.47, 206,408.82 and 85,921.35

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Solution

The fourth proportional to 149,548.47, 206,408.82 and 85,921.35 is: 118,589.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,548.47 : 206,408.82 = 85,921.35 : x
  2. Step 2: Convert to fraction form
    149,548.47/206,408.82 = 85,921.35/x
  3. Step 3: Cross multiply
    149,548.47x = 206,408.82 × 85,921.35
  4. Step 4: Simplify right side
    149,548.47x = 17,734,924,466.31
  5. Step 5: Solve for x
    x = 17,734,924,466.31/149,548.47
  6. Step 6: Final answer
    x = 118,589.81

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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.