Home / 123,023.10-184,418.55-66,780.30

Finding the Fourth Proportional to 123,023.10, 184,418.55 and 66,780.30

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Solution

The fourth proportional to 123,023.10, 184,418.55 and 66,780.30 is: 100,107.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,023.10 : 184,418.55 = 66,780.30 : x
  2. Step 2: Convert to fraction form
    123,023.10/184,418.55 = 66,780.30/x
  3. Step 3: Cross multiply
    123,023.10x = 184,418.55 × 66,780.30
  4. Step 4: Simplify right side
    123,023.10x = 12,315,526,094.57
  5. Step 5: Solve for x
    x = 12,315,526,094.57/123,023.10
  6. Step 6: Final answer
    x = 100,107.43

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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.