Home / 149,784.54-206,704.07-85,250.61

Finding the Fourth Proportional to 149,784.54, 206,704.07 and 85,250.61

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Solution

The fourth proportional to 149,784.54, 206,704.07 and 85,250.61 is: 117,646.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,784.54 : 206,704.07 = 85,250.61 : x
  2. Step 2: Convert to fraction form
    149,784.54/206,704.07 = 85,250.61/x
  3. Step 3: Cross multiply
    149,784.54x = 206,704.07 × 85,250.61
  4. Step 4: Simplify right side
    149,784.54x = 17,621,648,056.98
  5. Step 5: Solve for x
    x = 17,621,648,056.98/149,784.54
  6. Step 6: Final answer
    x = 117,646.64

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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.