Home / 149,403.28-206,177.52-85,739.44

Finding the Fourth Proportional to 149,403.28, 206,177.52 and 85,739.44

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Solution

The fourth proportional to 149,403.28, 206,177.52 and 85,739.44 is: 118,321.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,403.28 : 206,177.52 = 85,739.44 : x
  2. Step 2: Convert to fraction form
    149,403.28/206,177.52 = 85,739.44/x
  3. Step 3: Cross multiply
    149,403.28x = 206,177.52 × 85,739.44
  4. Step 4: Simplify right side
    149,403.28x = 17,677,545,105.39
  5. Step 5: Solve for x
    x = 17,677,545,105.39/149,403.28
  6. Step 6: Final answer
    x = 118,321.00

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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.