Home / 129,450.49-193,926.96-79,384.59

Finding the Fourth Proportional to 129,450.49, 193,926.96 and 79,384.59

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Solution

The fourth proportional to 129,450.49, 193,926.96 and 79,384.59 is: 118,924.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,450.49 : 193,926.96 = 79,384.59 : x
  2. Step 2: Convert to fraction form
    129,450.49/193,926.96 = 79,384.59/x
  3. Step 3: Cross multiply
    129,450.49x = 193,926.96 × 79,384.59
  4. Step 4: Simplify right side
    129,450.49x = 15,394,812,209.55
  5. Step 5: Solve for x
    x = 15,394,812,209.55/129,450.49
  6. Step 6: Final answer
    x = 118,924.33

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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.