Home / 129,644.20-194,442.30-36,130.60

Finding the Fourth Proportional to 129,644.20, 194,442.30 and 36,130.60

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Solution

The fourth proportional to 129,644.20, 194,442.30 and 36,130.60 is: 54,189.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,644.20 : 194,442.30 = 36,130.60 : x
  2. Step 2: Convert to fraction form
    129,644.20/194,442.30 = 36,130.60/x
  3. Step 3: Cross multiply
    129,644.20x = 194,442.30 × 36,130.60
  4. Step 4: Simplify right side
    129,644.20x = 7,025,316,964.38
  5. Step 5: Solve for x
    x = 7,025,316,964.38/129,644.20
  6. Step 6: Final answer
    x = 54,189.21

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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.