Home / 144,520.20-199,518.23-87,173.98

Finding the Fourth Proportional to 144,520.20, 199,518.23 and 87,173.98

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Solution

The fourth proportional to 144,520.20, 199,518.23 and 87,173.98 is: 120,348.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,520.20 : 199,518.23 = 87,173.98 : x
  2. Step 2: Convert to fraction form
    144,520.20/199,518.23 = 87,173.98/x
  3. Step 3: Cross multiply
    144,520.20x = 199,518.23 × 87,173.98
  4. Step 4: Simplify right side
    144,520.20x = 17,392,797,910.79
  5. Step 5: Solve for x
    x = 17,392,797,910.79/144,520.20
  6. Step 6: Final answer
    x = 120,348.56

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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.