Home / 104,690.43-144,531.99-80,115.12

Finding the Fourth Proportional to 104,690.43, 144,531.99 and 80,115.12

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Solution

The fourth proportional to 104,690.43, 144,531.99 and 80,115.12 is: 110,604.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,690.43 : 144,531.99 = 80,115.12 : x
  2. Step 2: Convert to fraction form
    104,690.43/144,531.99 = 80,115.12/x
  3. Step 3: Cross multiply
    104,690.43x = 144,531.99 × 80,115.12
  4. Step 4: Simplify right side
    104,690.43x = 11,579,197,722.69
  5. Step 5: Solve for x
    x = 11,579,197,722.69/104,690.43
  6. Step 6: Final answer
    x = 110,604.17

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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.