Home / 118,147.25-162,951.05-75,709.73

Finding the Fourth Proportional to 118,147.25, 162,951.05 and 75,709.73

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Solution

The fourth proportional to 118,147.25, 162,951.05 and 75,709.73 is: 104,420.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,147.25 : 162,951.05 = 75,709.73 : x
  2. Step 2: Convert to fraction form
    118,147.25/162,951.05 = 75,709.73/x
  3. Step 3: Cross multiply
    118,147.25x = 162,951.05 × 75,709.73
  4. Step 4: Simplify right side
    118,147.25x = 12,336,978,805.41
  5. Step 5: Solve for x
    x = 12,336,978,805.41/118,147.25
  6. Step 6: Final answer
    x = 104,420.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.