Home / 126,351.36-189,526.28-31,581.07

Finding the Fourth Proportional to 126,351.36, 189,526.28 and 31,581.07

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Solution

The fourth proportional to 126,351.36, 189,526.28 and 31,581.07 is: 47,371.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,351.36 : 189,526.28 = 31,581.07 : x
  2. Step 2: Convert to fraction form
    126,351.36/189,526.28 = 31,581.07/x
  3. Step 3: Cross multiply
    126,351.36x = 189,526.28 × 31,581.07
  4. Step 4: Simplify right side
    126,351.36x = 5,985,442,083.80
  5. Step 5: Solve for x
    x = 5,985,442,083.80/126,351.36
  6. Step 6: Final answer
    x = 47,371.41

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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.