Home / 126,020.81-189,026.36-31,251.22

Finding the Fourth Proportional to 126,020.81, 189,026.36 and 31,251.22

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Solution

The fourth proportional to 126,020.81, 189,026.36 and 31,251.22 is: 46,875.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,020.81 : 189,026.36 = 31,251.22 : x
  2. Step 2: Convert to fraction form
    126,020.81/189,026.36 = 31,251.22/x
  3. Step 3: Cross multiply
    126,020.81x = 189,026.36 × 31,251.22
  4. Step 4: Simplify right side
    126,020.81x = 5,907,303,850.53
  5. Step 5: Solve for x
    x = 5,907,303,850.53/126,020.81
  6. Step 6: Final answer
    x = 46,875.62

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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.