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Finding the Fourth Proportional to 163,087.80, 244,401.30 and 120,636.60

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Solution

The fourth proportional to 163,087.80, 244,401.30 and 120,636.60 is: 180,784.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,087.80 : 244,401.30 = 120,636.60 : x
  2. Step 2: Convert to fraction form
    163,087.80/244,401.30 = 120,636.60/x
  3. Step 3: Cross multiply
    163,087.80x = 244,401.30 × 120,636.60
  4. Step 4: Simplify right side
    163,087.80x = 29,483,741,867.58
  5. Step 5: Solve for x
    x = 29,483,741,867.58/163,087.80
  6. Step 6: Final answer
    x = 180,784.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.