Home / 185,211.37-255,591.75-100,328.50

Finding the Fourth Proportional to 185,211.37, 255,591.75 and 100,328.50

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Solution

The fourth proportional to 185,211.37, 255,591.75 and 100,328.50 is: 138,453.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,211.37 : 255,591.75 = 100,328.50 : x
  2. Step 2: Convert to fraction form
    185,211.37/255,591.75 = 100,328.50/x
  3. Step 3: Cross multiply
    185,211.37x = 255,591.75 × 100,328.50
  4. Step 4: Simplify right side
    185,211.37x = 25,643,136,889.88
  5. Step 5: Solve for x
    x = 25,643,136,889.88/185,211.37
  6. Step 6: Final answer
    x = 138,453.36

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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.