Home / 98,141.88-135,439.92-55,704.36

Finding the Fourth Proportional to 98,141.88, 135,439.92 and 55,704.36

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Solution

The fourth proportional to 98,141.88, 135,439.92 and 55,704.36 is: 76,874.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,141.88 : 135,439.92 = 55,704.36 : x
  2. Step 2: Convert to fraction form
    98,141.88/135,439.92 = 55,704.36/x
  3. Step 3: Cross multiply
    98,141.88x = 135,439.92 × 55,704.36
  4. Step 4: Simplify right side
    98,141.88x = 7,544,594,062.05
  5. Step 5: Solve for x
    x = 7,544,594,062.05/98,141.88
  6. Step 6: Final answer
    x = 76,874.36

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1.5x scale

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.