Home / 129,642.19-194,496.09-36,147.94

Finding the Fourth Proportional to 129,642.19, 194,496.09 and 36,147.94

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Solution

The fourth proportional to 129,642.19, 194,496.09 and 36,147.94 is: 54,231.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,642.19 : 194,496.09 = 36,147.94 : x
  2. Step 2: Convert to fraction form
    129,642.19/194,496.09 = 36,147.94/x
  3. Step 3: Cross multiply
    129,642.19x = 194,496.09 × 36,147.94
  4. Step 4: Simplify right side
    129,642.19x = 7,030,632,369.76
  5. Step 5: Solve for x
    x = 7,030,632,369.76/129,642.19
  6. Step 6: Final answer
    x = 54,231.05

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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.