Home / 104,142.20-143,715.11-58,819.35

Finding the Fourth Proportional to 104,142.20, 143,715.11 and 58,819.35

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Solution

The fourth proportional to 104,142.20, 143,715.11 and 58,819.35 is: 81,170.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,142.20 : 143,715.11 = 58,819.35 : x
  2. Step 2: Convert to fraction form
    104,142.20/143,715.11 = 58,819.35/x
  3. Step 3: Cross multiply
    104,142.20x = 143,715.11 × 58,819.35
  4. Step 4: Simplify right side
    104,142.20x = 8,453,229,061.28
  5. Step 5: Solve for x
    x = 8,453,229,061.28/104,142.20
  6. Step 6: Final answer
    x = 81,170.07

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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.