Home / 185,354.40-255,782.20-100,469.64

Finding the Fourth Proportional to 185,354.40, 255,782.20 and 100,469.64

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Solution

The fourth proportional to 185,354.40, 255,782.20 and 100,469.64 is: 138,644.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,354.40 : 255,782.20 = 100,469.64 : x
  2. Step 2: Convert to fraction form
    185,354.40/255,782.20 = 100,469.64/x
  3. Step 3: Cross multiply
    185,354.40x = 255,782.20 × 100,469.64
  4. Step 4: Simplify right side
    185,354.40x = 25,698,345,552.41
  5. Step 5: Solve for x
    x = 25,698,345,552.41/185,354.40
  6. Step 6: Final answer
    x = 138,644.38

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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.