Home / 149,784.59-206,704.14-85,250.66

Finding the Fourth Proportional to 149,784.59, 206,704.14 and 85,250.66

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Solution

The fourth proportional to 149,784.59, 206,704.14 and 85,250.66 is: 117,646.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,784.59 : 206,704.14 = 85,250.66 : x
  2. Step 2: Convert to fraction form
    149,784.59/206,704.14 = 85,250.66/x
  3. Step 3: Cross multiply
    149,784.59x = 206,704.14 × 85,250.66
  4. Step 4: Simplify right side
    149,784.59x = 17,621,664,169.23
  5. Step 5: Solve for x
    x = 17,621,664,169.23/149,784.59
  6. Step 6: Final answer
    x = 117,646.71

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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.