Home / 126,385.08-189,636.23-55,298.34

Finding the Fourth Proportional to 126,385.08, 189,636.23 and 55,298.34

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Solution

The fourth proportional to 126,385.08, 189,636.23 and 55,298.34 is: 82,973.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,385.08 : 189,636.23 = 55,298.34 : x
  2. Step 2: Convert to fraction form
    126,385.08/189,636.23 = 55,298.34/x
  3. Step 3: Cross multiply
    126,385.08x = 189,636.23 × 55,298.34
  4. Step 4: Simplify right side
    126,385.08x = 10,486,568,722.86
  5. Step 5: Solve for x
    x = 10,486,568,722.86/126,385.08
  6. Step 6: Final answer
    x = 82,973.15

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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.