Home / 212,596.38-318,096.09-130,146.30

Finding the Fourth Proportional to 212,596.38, 318,096.09 and 130,146.30

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Solution

The fourth proportional to 212,596.38, 318,096.09 and 130,146.30 is: 194,730.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,596.38 : 318,096.09 = 130,146.30 : x
  2. Step 2: Convert to fraction form
    212,596.38/318,096.09 = 130,146.30/x
  3. Step 3: Cross multiply
    212,596.38x = 318,096.09 × 130,146.30
  4. Step 4: Simplify right side
    212,596.38x = 41,399,029,157.97
  5. Step 5: Solve for x
    x = 41,399,029,157.97/212,596.38
  6. Step 6: Final answer
    x = 194,730.64

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1.5x scale

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.