Home / 185,156.34-255,515.22-100,273.20

Finding the Fourth Proportional to 185,156.34, 255,515.22 and 100,273.20

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Solution

The fourth proportional to 185,156.34, 255,515.22 and 100,273.20 is: 138,376.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,156.34 : 255,515.22 = 100,273.20 : x
  2. Step 2: Convert to fraction form
    185,156.34/255,515.22 = 100,273.20/x
  3. Step 3: Cross multiply
    185,156.34x = 255,515.22 × 100,273.20
  4. Step 4: Simplify right side
    185,156.34x = 25,621,328,758.10
  5. Step 5: Solve for x
    x = 25,621,328,758.10/185,156.34
  6. Step 6: Final answer
    x = 138,376.73

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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.