Home / 185,161.15-255,522.14-100,278.55

Finding the Fourth Proportional to 185,161.15, 255,522.14 and 100,278.55

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Solution

The fourth proportional to 185,161.15, 255,522.14 and 100,278.55 is: 138,384.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,161.15 : 255,522.14 = 100,278.55 : x
  2. Step 2: Convert to fraction form
    185,161.15/255,522.14 = 100,278.55/x
  3. Step 3: Cross multiply
    185,161.15x = 255,522.14 × 100,278.55
  4. Step 4: Simplify right side
    185,161.15x = 25,623,388,414.49
  5. Step 5: Solve for x
    x = 25,623,388,414.49/185,161.15
  6. Step 6: Final answer
    x = 138,384.26

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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.