Home / 104,690.49-144,532.05-80,115.12

Finding the Fourth Proportional to 104,690.49, 144,532.05 and 80,115.12

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Solution

The fourth proportional to 104,690.49, 144,532.05 and 80,115.12 is: 110,604.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,690.49 : 144,532.05 = 80,115.12 : x
  2. Step 2: Convert to fraction form
    104,690.49/144,532.05 = 80,115.12/x
  3. Step 3: Cross multiply
    104,690.49x = 144,532.05 × 80,115.12
  4. Step 4: Simplify right side
    104,690.49x = 11,579,202,529.60
  5. Step 5: Solve for x
    x = 11,579,202,529.60/104,690.49
  6. Step 6: Final answer
    x = 110,604.15

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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.