Home / 123,022.20-184,095.90-85,405.80

Finding the Fourth Proportional to 123,022.20, 184,095.90 and 85,405.80

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Solution

The fourth proportional to 123,022.20, 184,095.90 and 85,405.80 is: 127,805.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,022.20 : 184,095.90 = 85,405.80 : x
  2. Step 2: Convert to fraction form
    123,022.20/184,095.90 = 85,405.80/x
  3. Step 3: Cross multiply
    123,022.20x = 184,095.90 × 85,405.80
  4. Step 4: Simplify right side
    123,022.20x = 15,722,857,616.22
  5. Step 5: Solve for x
    x = 15,722,857,616.22/123,022.20
  6. Step 6: Final answer
    x = 127,805.04

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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.