Home / 98,826.56-136,378.16-55,219.48

Finding the Fourth Proportional to 98,826.56, 136,378.16 and 55,219.48

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Solution

The fourth proportional to 98,826.56, 136,378.16 and 55,219.48 is: 76,201.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,826.56 : 136,378.16 = 55,219.48 : x
  2. Step 2: Convert to fraction form
    98,826.56/136,378.16 = 55,219.48/x
  3. Step 3: Cross multiply
    98,826.56x = 136,378.16 × 55,219.48
  4. Step 4: Simplify right side
    98,826.56x = 7,530,731,078.56
  5. Step 5: Solve for x
    x = 7,530,731,078.56/98,826.56
  6. Step 6: Final answer
    x = 76,201.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.