Home / 213,084.40-319,626.60-133,769.20

Finding the Fourth Proportional to 213,084.40, 319,626.60 and 133,769.20

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Solution

The fourth proportional to 213,084.40, 319,626.60 and 133,769.20 is: 200,653.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,084.40 : 319,626.60 = 133,769.20 : x
  2. Step 2: Convert to fraction form
    213,084.40/319,626.60 = 133,769.20/x
  3. Step 3: Cross multiply
    213,084.40x = 319,626.60 × 133,769.20
  4. Step 4: Simplify right side
    213,084.40x = 42,756,194,580.72
  5. Step 5: Solve for x
    x = 42,756,194,580.72/213,084.40
  6. Step 6: Final answer
    x = 200,653.80

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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.