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Finding the Fourth Proportional to 144,480.81, 199,381.98 and 80,819.13

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Solution

The fourth proportional to 144,480.81, 199,381.98 and 80,819.13 is: 111,529.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,480.81 : 199,381.98 = 80,819.13 : x
  2. Step 2: Convert to fraction form
    144,480.81/199,381.98 = 80,819.13/x
  3. Step 3: Cross multiply
    144,480.81x = 199,381.98 × 80,819.13
  4. Step 4: Simplify right side
    144,480.81x = 16,113,878,161.28
  5. Step 5: Solve for x
    x = 16,113,878,161.28/144,480.81
  6. Step 6: Final answer
    x = 111,529.54

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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.