Home / 185,756.56-256,336.80-100,871.68

Finding the Fourth Proportional to 185,756.56, 256,336.80 and 100,871.68

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Solution

The fourth proportional to 185,756.56, 256,336.80 and 100,871.68 is: 139,198.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,756.56 : 256,336.80 = 100,871.68 : x
  2. Step 2: Convert to fraction form
    185,756.56/256,336.80 = 100,871.68/x
  3. Step 3: Cross multiply
    185,756.56x = 256,336.80 × 100,871.68
  4. Step 4: Simplify right side
    185,756.56x = 25,857,123,661.82
  5. Step 5: Solve for x
    x = 25,857,123,661.82/185,756.56
  6. Step 6: Final answer
    x = 139,198.98

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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.