Home / 185,211.56-255,591.96-100,328.63

Finding the Fourth Proportional to 185,211.56, 255,591.96 and 100,328.63

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Solution

The fourth proportional to 185,211.56, 255,591.96 and 100,328.63 is: 138,453.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,211.56 : 255,591.96 = 100,328.63 : x
  2. Step 2: Convert to fraction form
    185,211.56/255,591.96 = 100,328.63/x
  3. Step 3: Cross multiply
    185,211.56x = 255,591.96 × 100,328.63
  4. Step 4: Simplify right side
    185,211.56x = 25,643,189,531.62
  5. Step 5: Solve for x
    x = 25,643,189,531.62/185,211.56
  6. Step 6: Final answer
    x = 138,453.50

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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.