Home / 98,149.55-135,435.60-55,120.31

Finding the Fourth Proportional to 98,149.55, 135,435.60 and 55,120.31

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Solution

The fourth proportional to 98,149.55, 135,435.60 and 55,120.31 is: 76,059.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,149.55 : 135,435.60 = 55,120.31 : x
  2. Step 2: Convert to fraction form
    98,149.55/135,435.60 = 55,120.31/x
  3. Step 3: Cross multiply
    98,149.55x = 135,435.60 × 55,120.31
  4. Step 4: Simplify right side
    98,149.55x = 7,465,252,257.04
  5. Step 5: Solve for x
    x = 7,465,252,257.04/98,149.55
  6. Step 6: Final answer
    x = 76,059.97

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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.