Home / 149,469.60-206,261.76-81,485.12

Finding the Fourth Proportional to 149,469.60, 206,261.76 and 81,485.12

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Solution

The fourth proportional to 149,469.60, 206,261.76 and 81,485.12 is: 112,446.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,469.60 : 206,261.76 = 81,485.12 : x
  2. Step 2: Convert to fraction form
    149,469.60/206,261.76 = 81,485.12/x
  3. Step 3: Cross multiply
    149,469.60x = 206,261.76 × 81,485.12
  4. Step 4: Simplify right side
    149,469.60x = 16,807,264,265.01
  5. Step 5: Solve for x
    x = 16,807,264,265.01/149,469.60
  6. Step 6: Final answer
    x = 112,446.04

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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.