Home / 150,819.30-208,107.49-87,144.79

Finding the Fourth Proportional to 150,819.30, 208,107.49 and 87,144.79

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Solution

The fourth proportional to 150,819.30, 208,107.49 and 87,144.79 is: 120,246.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,819.30 : 208,107.49 = 87,144.79 : x
  2. Step 2: Convert to fraction form
    150,819.30/208,107.49 = 87,144.79/x
  3. Step 3: Cross multiply
    150,819.30x = 208,107.49 × 87,144.79
  4. Step 4: Simplify right side
    150,819.30x = 18,135,483,513.48
  5. Step 5: Solve for x
    x = 18,135,483,513.48/150,819.30
  6. Step 6: Final answer
    x = 120,246.44

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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.