Home / 149,985.37-206,992.56-85,474.34

Finding the Fourth Proportional to 149,985.37, 206,992.56 and 85,474.34

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Solution

The fourth proportional to 149,985.37, 206,992.56 and 85,474.34 is: 117,961.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,985.37 : 206,992.56 = 85,474.34 : x
  2. Step 2: Convert to fraction form
    149,985.37/206,992.56 = 85,474.34/x
  3. Step 3: Cross multiply
    149,985.37x = 206,992.56 × 85,474.34
  4. Step 4: Simplify right side
    149,985.37x = 17,692,552,512.70
  5. Step 5: Solve for x
    x = 17,692,552,512.70/149,985.37
  6. Step 6: Final answer
    x = 117,961.85

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1.5x scale

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.