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Finding the Fourth Proportional to 123,373.80, 184,623.30 and 84,007.80

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Solution

The fourth proportional to 123,373.80, 184,623.30 and 84,007.80 is: 125,713.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,373.80 : 184,623.30 = 84,007.80 : x
  2. Step 2: Convert to fraction form
    123,373.80/184,623.30 = 84,007.80/x
  3. Step 3: Cross multiply
    123,373.80x = 184,623.30 × 84,007.80
  4. Step 4: Simplify right side
    123,373.80x = 15,509,797,261.74
  5. Step 5: Solve for x
    x = 15,509,797,261.74/123,373.80
  6. Step 6: Final answer
    x = 125,713.87

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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.