Home / 129,569.39-194,378.58-50,678.63

Finding the Fourth Proportional to 129,569.39, 194,378.58 and 50,678.63

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Solution

The fourth proportional to 129,569.39, 194,378.58 and 50,678.63 is: 76,027.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,569.39 : 194,378.58 = 50,678.63 : x
  2. Step 2: Convert to fraction form
    129,569.39/194,378.58 = 50,678.63/x
  3. Step 3: Cross multiply
    129,569.39x = 194,378.58 × 50,678.63
  4. Step 4: Simplify right side
    129,569.39x = 9,850,839,163.85
  5. Step 5: Solve for x
    x = 9,850,839,163.85/129,569.39
  6. Step 6: Final answer
    x = 76,027.52

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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.