Home / 201,680.10-302,520.15-131,177.70

Finding the Fourth Proportional to 201,680.10, 302,520.15 and 131,177.70

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Solution

The fourth proportional to 201,680.10, 302,520.15 and 131,177.70 is: 196,766.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,680.10 : 302,520.15 = 131,177.70 : x
  2. Step 2: Convert to fraction form
    201,680.10/302,520.15 = 131,177.70/x
  3. Step 3: Cross multiply
    201,680.10x = 302,520.15 × 131,177.70
  4. Step 4: Simplify right side
    201,680.10x = 39,683,897,480.66
  5. Step 5: Solve for x
    x = 39,683,897,480.66/201,680.10
  6. Step 6: Final answer
    x = 196,766.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.