Home / 90,130.08-135,198.26-30,965.32

Finding the Fourth Proportional to 90,130.08, 135,198.26 and 30,965.32

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Solution

The fourth proportional to 90,130.08, 135,198.26 and 30,965.32 is: 46,449.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,130.08 : 135,198.26 = 30,965.32 : x
  2. Step 2: Convert to fraction form
    90,130.08/135,198.26 = 30,965.32/x
  3. Step 3: Cross multiply
    90,130.08x = 135,198.26 × 30,965.32
  4. Step 4: Simplify right side
    90,130.08x = 4,186,456,553.53
  5. Step 5: Solve for x
    x = 4,186,456,553.53/90,130.08
  6. Step 6: Final answer
    x = 46,449.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.