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Finding the Fourth Proportional to 163,259.88, 225,299.52 and 91,640.76

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Solution

The fourth proportional to 163,259.88, 225,299.52 and 91,640.76 is: 126,464.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,259.88 : 225,299.52 = 91,640.76 : x
  2. Step 2: Convert to fraction form
    163,259.88/225,299.52 = 91,640.76/x
  3. Step 3: Cross multiply
    163,259.88x = 225,299.52 × 91,640.76
  4. Step 4: Simplify right side
    163,259.88x = 20,646,619,240.44
  5. Step 5: Solve for x
    x = 20,646,619,240.44/163,259.88
  6. Step 6: Final answer
    x = 126,464.75

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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.