Home / 126,537.87-189,712.25-76,605.94

Finding the Fourth Proportional to 126,537.87, 189,712.25 and 76,605.94

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Solution

The fourth proportional to 126,537.87, 189,712.25 and 76,605.94 is: 114,851.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,537.87 : 189,712.25 = 76,605.94 : x
  2. Step 2: Convert to fraction form
    126,537.87/189,712.25 = 76,605.94/x
  3. Step 3: Cross multiply
    126,537.87x = 189,712.25 × 76,605.94
  4. Step 4: Simplify right side
    126,537.87x = 14,533,085,240.77
  5. Step 5: Solve for x
    x = 14,533,085,240.77/126,537.87
  6. Step 6: Final answer
    x = 114,851.67

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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.