Home / 126,430.29-189,578.03-55,269.63

Finding the Fourth Proportional to 126,430.29, 189,578.03 and 55,269.63

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Solution

The fourth proportional to 126,430.29, 189,578.03 and 55,269.63 is: 82,874.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,430.29 : 189,578.03 = 55,269.63 : x
  2. Step 2: Convert to fraction form
    126,430.29/189,578.03 = 55,269.63/x
  3. Step 3: Cross multiply
    126,430.29x = 189,578.03 × 55,269.63
  4. Step 4: Simplify right side
    126,430.29x = 10,477,907,297.88
  5. Step 5: Solve for x
    x = 10,477,907,297.88/126,430.29
  6. Step 6: Final answer
    x = 82,874.98

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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.