Home / 126,398.36-189,598.06-31,628.28

Finding the Fourth Proportional to 126,398.36, 189,598.06 and 31,628.28

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Solution

The fourth proportional to 126,398.36, 189,598.06 and 31,628.28 is: 47,442.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,398.36 : 189,598.06 = 31,628.28 : x
  2. Step 2: Convert to fraction form
    126,398.36/189,598.06 = 31,628.28/x
  3. Step 3: Cross multiply
    126,398.36x = 189,598.06 × 31,628.28
  4. Step 4: Simplify right side
    126,398.36x = 5,996,661,161.06
  5. Step 5: Solve for x
    x = 5,996,661,161.06/126,398.36
  6. Step 6: Final answer
    x = 47,442.56

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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.