Home / 129,749.94-194,653.14-39,792.69

Finding the Fourth Proportional to 129,749.94, 194,653.14 and 39,792.69

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Solution

The fourth proportional to 129,749.94, 194,653.14 and 39,792.69 is: 59,697.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,749.94 : 194,653.14 = 39,792.69 : x
  2. Step 2: Convert to fraction form
    129,749.94/194,653.14 = 39,792.69/x
  3. Step 3: Cross multiply
    129,749.94x = 194,653.14 × 39,792.69
  4. Step 4: Simplify right side
    129,749.94x = 7,745,772,057.55
  5. Step 5: Solve for x
    x = 7,745,772,057.55/129,749.94
  6. Step 6: Final answer
    x = 59,697.69

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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.