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Finding the Fourth Proportional to 163,208.99, 225,244.59 and 91,589.30

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Solution

The fourth proportional to 163,208.99, 225,244.59 and 91,589.30 is: 126,402.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,208.99 : 225,244.59 = 91,589.30 : x
  2. Step 2: Convert to fraction form
    163,208.99/225,244.59 = 91,589.30/x
  3. Step 3: Cross multiply
    163,208.99x = 225,244.59 × 91,589.30
  4. Step 4: Simplify right side
    163,208.99x = 20,629,994,326.89
  5. Step 5: Solve for x
    x = 20,629,994,326.89/163,208.99
  6. Step 6: Final answer
    x = 126,402.32

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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.