Home / 98,284.08-135,599.40-80,103.54

Finding the Fourth Proportional to 98,284.08, 135,599.40 and 80,103.54

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Solution

The fourth proportional to 98,284.08, 135,599.40 and 80,103.54 is: 110,516.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,284.08 : 135,599.40 = 80,103.54 : x
  2. Step 2: Convert to fraction form
    98,284.08/135,599.40 = 80,103.54/x
  3. Step 3: Cross multiply
    98,284.08x = 135,599.40 × 80,103.54
  4. Step 4: Simplify right side
    98,284.08x = 10,861,991,792.38
  5. Step 5: Solve for x
    x = 10,861,991,792.38/98,284.08
  6. Step 6: Final answer
    x = 110,516.29

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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.