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Finding the Fourth Proportional to 144,289.84, 199,120.98 and 80,630.32

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Solution

The fourth proportional to 144,289.84, 199,120.98 and 80,630.32 is: 111,270.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,289.84 : 199,120.98 = 80,630.32 : x
  2. Step 2: Convert to fraction form
    144,289.84/199,120.98 = 80,630.32/x
  3. Step 3: Cross multiply
    144,289.84x = 199,120.98 × 80,630.32
  4. Step 4: Simplify right side
    144,289.84x = 16,055,188,336.11
  5. Step 5: Solve for x
    x = 16,055,188,336.11/144,289.84
  6. Step 6: Final answer
    x = 111,270.40

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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.