Home / 149,658.20-206,563.66-86,032.90

Finding the Fourth Proportional to 149,658.20, 206,563.66 and 86,032.90

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Solution

The fourth proportional to 149,658.20, 206,563.66 and 86,032.90 is: 118,745.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,658.20 : 206,563.66 = 86,032.90 : x
  2. Step 2: Convert to fraction form
    149,658.20/206,563.66 = 86,032.90/x
  3. Step 3: Cross multiply
    149,658.20x = 206,563.66 × 86,032.90
  4. Step 4: Simplify right side
    149,658.20x = 17,771,270,704.41
  5. Step 5: Solve for x
    x = 17,771,270,704.41/149,658.20
  6. Step 6: Final answer
    x = 118,745.72

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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.