Home / 185,672.40-256,228.20-100,789.44

Finding the Fourth Proportional to 185,672.40, 256,228.20 and 100,789.44

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Solution

The fourth proportional to 185,672.40, 256,228.20 and 100,789.44 is: 139,089.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,672.40 : 256,228.20 = 100,789.44 : x
  2. Step 2: Convert to fraction form
    185,672.40/256,228.20 = 100,789.44/x
  3. Step 3: Cross multiply
    185,672.40x = 256,228.20 × 100,789.44
  4. Step 4: Simplify right side
    185,672.40x = 25,825,096,790.21
  5. Step 5: Solve for x
    x = 25,825,096,790.21/185,672.40
  6. Step 6: Final answer
    x = 139,089.58

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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.