Home / 98,480.82-135,857.07-71,611.50

Finding the Fourth Proportional to 98,480.82, 135,857.07 and 71,611.50

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Solution

The fourth proportional to 98,480.82, 135,857.07 and 71,611.50 is: 98,790.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,480.82 : 135,857.07 = 71,611.50 : x
  2. Step 2: Convert to fraction form
    98,480.82/135,857.07 = 71,611.50/x
  3. Step 3: Cross multiply
    98,480.82x = 135,857.07 × 71,611.50
  4. Step 4: Simplify right side
    98,480.82x = 9,728,928,568.31
  5. Step 5: Solve for x
    x = 9,728,928,568.31/98,480.82
  6. Step 6: Final answer
    x = 98,790.08

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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.