Home / 98,100.75-135,427.04-65,823.83

Finding the Fourth Proportional to 98,100.75, 135,427.04 and 65,823.83

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Solution

The fourth proportional to 98,100.75, 135,427.04 and 65,823.83 is: 90,869.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,100.75 : 135,427.04 = 65,823.83 : x
  2. Step 2: Convert to fraction form
    98,100.75/135,427.04 = 65,823.83/x
  3. Step 3: Cross multiply
    98,100.75x = 135,427.04 × 65,823.83
  4. Step 4: Simplify right side
    98,100.75x = 8,914,325,452.11
  5. Step 5: Solve for x
    x = 8,914,325,452.11/98,100.75
  6. Step 6: Final answer
    x = 90,869.09

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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.