Home / 126,503.20-189,625.20-73,885.60

Finding the Fourth Proportional to 126,503.20, 189,625.20 and 73,885.60

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Solution

The fourth proportional to 126,503.20, 189,625.20 and 73,885.60 is: 110,752.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,503.20 : 189,625.20 = 73,885.60 : x
  2. Step 2: Convert to fraction form
    126,503.20/189,625.20 = 73,885.60/x
  3. Step 3: Cross multiply
    126,503.20x = 189,625.20 × 73,885.60
  4. Step 4: Simplify right side
    126,503.20x = 14,010,571,677.12
  5. Step 5: Solve for x
    x = 14,010,571,677.12/126,503.20
  6. Step 6: Final answer
    x = 110,752.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.