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Finding the Fourth Proportional to 163,164.88, 225,171 and 91,550.08

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Solution

The fourth proportional to 163,164.88, 225,171 and 91,550.08 is: 126,341.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,164.88 : 225,171 = 91,550.08 : x
  2. Step 2: Convert to fraction form
    163,164.88/225,171 = 91,550.08/x
  3. Step 3: Cross multiply
    163,164.88x = 225,171 × 91,550.08
  4. Step 4: Simplify right side
    163,164.88x = 20,614,423,063.68
  5. Step 5: Solve for x
    x = 20,614,423,063.68/163,164.88
  6. Step 6: Final answer
    x = 126,341.05

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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.