Home / 185,786.18-256,384.71-100,902.63

Finding the Fourth Proportional to 185,786.18, 256,384.71 and 100,902.63

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Solution

The fourth proportional to 185,786.18, 256,384.71 and 100,902.63 is: 139,245.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,786.18 : 256,384.71 = 100,902.63 : x
  2. Step 2: Convert to fraction form
    185,786.18/256,384.71 = 100,902.63/x
  3. Step 3: Cross multiply
    185,786.18x = 256,384.71 × 100,902.63
  4. Step 4: Simplify right side
    185,786.18x = 25,869,891,530.79
  5. Step 5: Solve for x
    x = 25,869,891,530.79/185,786.18
  6. Step 6: Final answer
    x = 139,245.51

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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.