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Finding the Fourth Proportional to 163,451.32, 225,561.28 and 90,852.31

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Solution

The fourth proportional to 163,451.32, 225,561.28 and 90,852.31 is: 125,375.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,451.32 : 225,561.28 = 90,852.31 : x
  2. Step 2: Convert to fraction form
    163,451.32/225,561.28 = 90,852.31/x
  3. Step 3: Cross multiply
    163,451.32x = 225,561.28 × 90,852.31
  4. Step 4: Simplify right side
    163,451.32x = 20,492,762,770.65
  5. Step 5: Solve for x
    x = 20,492,762,770.65/163,451.32
  6. Step 6: Final answer
    x = 125,375.33

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.