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Finding the Fourth Proportional to 129,359.69, 194,039.54 and 35,865.44

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Solution

The fourth proportional to 129,359.69, 194,039.54 and 35,865.44 is: 53,798.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,359.69 : 194,039.54 = 35,865.44 : x
  2. Step 2: Convert to fraction form
    129,359.69/194,039.54 = 35,865.44/x
  3. Step 3: Cross multiply
    129,359.69x = 194,039.54 × 35,865.44
  4. Step 4: Simplify right side
    129,359.69x = 6,959,313,479.50
  5. Step 5: Solve for x
    x = 6,959,313,479.50/129,359.69
  6. Step 6: Final answer
    x = 53,798.16

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1.5x scale

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.