Home / 126,516.74-189,778.44-55,402.79

Finding the Fourth Proportional to 126,516.74, 189,778.44 and 55,402.79

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Solution

The fourth proportional to 126,516.74, 189,778.44 and 55,402.79 is: 83,105.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,516.74 : 189,778.44 = 55,402.79 : x
  2. Step 2: Convert to fraction form
    126,516.74/189,778.44 = 55,402.79/x
  3. Step 3: Cross multiply
    126,516.74x = 189,778.44 × 55,402.79
  4. Step 4: Simplify right side
    126,516.74x = 10,514,254,316.72
  5. Step 5: Solve for x
    x = 10,514,254,316.72/126,516.74
  6. Step 6: Final answer
    x = 83,105.64

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1.5x scale

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.