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Finding the Fourth Proportional to 144,289.68, 199,119.15 and 80,627.49

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Solution

The fourth proportional to 144,289.68, 199,119.15 and 80,627.49 is: 111,265.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,289.68 : 199,119.15 = 80,627.49 : x
  2. Step 2: Convert to fraction form
    144,289.68/199,119.15 = 80,627.49/x
  3. Step 3: Cross multiply
    144,289.68x = 199,119.15 × 80,627.49
  4. Step 4: Simplify right side
    144,289.68x = 16,054,477,275.43
  5. Step 5: Solve for x
    x = 16,054,477,275.43/144,289.68
  6. Step 6: Final answer
    x = 111,265.60

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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.