Home / 98,120.22-135,410.07-55,682.70

Finding the Fourth Proportional to 98,120.22, 135,410.07 and 55,682.70

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Solution

The fourth proportional to 98,120.22, 135,410.07 and 55,682.70 is: 76,844.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,120.22 : 135,410.07 = 55,682.70 : x
  2. Step 2: Convert to fraction form
    98,120.22/135,410.07 = 55,682.70/x
  3. Step 3: Cross multiply
    98,120.22x = 135,410.07 × 55,682.70
  4. Step 4: Simplify right side
    98,120.22x = 7,539,998,304.79
  5. Step 5: Solve for x
    x = 7,539,998,304.79/98,120.22
  6. Step 6: Final answer
    x = 76,844.49

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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.