Home / 129,938.56-194,885.76-36,422.80

Finding the Fourth Proportional to 129,938.56, 194,885.76 and 36,422.80

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Solution

The fourth proportional to 129,938.56, 194,885.76 and 36,422.80 is: 54,628.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,938.56 : 194,885.76 = 36,422.80 : x
  2. Step 2: Convert to fraction form
    129,938.56/194,885.76 = 36,422.80/x
  3. Step 3: Cross multiply
    129,938.56x = 194,885.76 × 36,422.80
  4. Step 4: Simplify right side
    129,938.56x = 7,098,285,059.33
  5. Step 5: Solve for x
    x = 7,098,285,059.33/129,938.56
  6. Step 6: Final answer
    x = 54,628.01

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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.