Home / 123,261.10-184,964.55-81,262.60

Finding the Fourth Proportional to 123,261.10, 184,964.55 and 81,262.60

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Solution

The fourth proportional to 123,261.10, 184,964.55 and 81,262.60 is: 121,941.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,261.10 : 184,964.55 = 81,262.60 : x
  2. Step 2: Convert to fraction form
    123,261.10/184,964.55 = 81,262.60/x
  3. Step 3: Cross multiply
    123,261.10x = 184,964.55 × 81,262.60
  4. Step 4: Simplify right side
    123,261.10x = 15,030,700,240.83
  5. Step 5: Solve for x
    x = 15,030,700,240.83/123,261.10
  6. Step 6: Final answer
    x = 121,941.96

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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.