Home / 126,718.31-190,003.66-55,638.11

Finding the Fourth Proportional to 126,718.31, 190,003.66 and 55,638.11

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Solution

The fourth proportional to 126,718.31, 190,003.66 and 55,638.11 is: 83,424.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,718.31 : 190,003.66 = 55,638.11 : x
  2. Step 2: Convert to fraction form
    126,718.31/190,003.66 = 55,638.11/x
  3. Step 3: Cross multiply
    126,718.31x = 190,003.66 × 55,638.11
  4. Step 4: Simplify right side
    126,718.31x = 10,571,444,871.40
  5. Step 5: Solve for x
    x = 10,571,444,871.40/126,718.31
  6. Step 6: Final answer
    x = 83,424.76

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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.