Home / 129,670.70-193,142.33-123,603.50

Finding the Fourth Proportional to 129,670.70, 193,142.33 and 123,603.50

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Solution

The fourth proportional to 129,670.70, 193,142.33 and 123,603.50 is: 184,105.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,670.70 : 193,142.33 = 123,603.50 : x
  2. Step 2: Convert to fraction form
    129,670.70/193,142.33 = 123,603.50/x
  3. Step 3: Cross multiply
    129,670.70x = 193,142.33 × 123,603.50
  4. Step 4: Simplify right side
    129,670.70x = 23,873,067,986.16
  5. Step 5: Solve for x
    x = 23,873,067,986.16/129,670.70
  6. Step 6: Final answer
    x = 184,105.34

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.