Home / 98,087.04-135,102.28-75,382.60

Finding the Fourth Proportional to 98,087.04, 135,102.28 and 75,382.60

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Solution

The fourth proportional to 98,087.04, 135,102.28 and 75,382.60 is: 103,829.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,087.04 : 135,102.28 = 75,382.60 : x
  2. Step 2: Convert to fraction form
    98,087.04/135,102.28 = 75,382.60/x
  3. Step 3: Cross multiply
    98,087.04x = 135,102.28 × 75,382.60
  4. Step 4: Simplify right side
    98,087.04x = 10,184,361,132.33
  5. Step 5: Solve for x
    x = 10,184,361,132.33/98,087.04
  6. Step 6: Final answer
    x = 103,829.83

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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.