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Finding the Fourth Proportional to 163,633.65, 225,716.52 and 99,860.73

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Solution

The fourth proportional to 163,633.65, 225,716.52 and 99,860.73 is: 137,748.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,633.65 : 225,716.52 = 99,860.73 : x
  2. Step 2: Convert to fraction form
    163,633.65/225,716.52 = 99,860.73/x
  3. Step 3: Cross multiply
    163,633.65x = 225,716.52 × 99,860.73
  4. Step 4: Simplify right side
    163,633.65x = 22,540,216,460.26
  5. Step 5: Solve for x
    x = 22,540,216,460.26/163,633.65
  6. Step 6: Final answer
    x = 137,748.05

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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.