Home / 137,609.92-189,903.26-76,357.22

Finding the Fourth Proportional to 137,609.92, 189,903.26 and 76,357.22

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Solution

The fourth proportional to 137,609.92, 189,903.26 and 76,357.22 is: 105,373.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,609.92 : 189,903.26 = 76,357.22 : x
  2. Step 2: Convert to fraction form
    137,609.92/189,903.26 = 76,357.22/x
  3. Step 3: Cross multiply
    137,609.92x = 189,903.26 × 76,357.22
  4. Step 4: Simplify right side
    137,609.92x = 14,500,485,002.54
  5. Step 5: Solve for x
    x = 14,500,485,002.54/137,609.92
  6. Step 6: Final answer
    x = 105,373.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.