Home / 129,519.63-194,270.53-79,607.43

Finding the Fourth Proportional to 129,519.63, 194,270.53 and 79,607.43

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Solution

The fourth proportional to 129,519.63, 194,270.53 and 79,607.43 is: 119,405.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,519.63 : 194,270.53 = 79,607.43 : x
  2. Step 2: Convert to fraction form
    129,519.63/194,270.53 = 79,607.43/x
  3. Step 3: Cross multiply
    129,519.63x = 194,270.53 × 79,607.43
  4. Step 4: Simplify right side
    129,519.63x = 15,465,377,618.04
  5. Step 5: Solve for x
    x = 15,465,377,618.04/129,519.63
  6. Step 6: Final answer
    x = 119,405.67

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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.