Home / 126,026.37-189,039.60-86,463.54

Finding the Fourth Proportional to 126,026.37, 189,039.60 and 86,463.54

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Solution

The fourth proportional to 126,026.37, 189,039.60 and 86,463.54 is: 129,695.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,026.37 : 189,039.60 = 86,463.54 : x
  2. Step 2: Convert to fraction form
    126,026.37/189,039.60 = 86,463.54/x
  3. Step 3: Cross multiply
    126,026.37x = 189,039.60 × 86,463.54
  4. Step 4: Simplify right side
    126,026.37x = 16,345,033,016.18
  5. Step 5: Solve for x
    x = 16,345,033,016.18/126,026.37
  6. Step 6: Final answer
    x = 129,695.34

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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.