Home / 136,108.72-187,838.52-75,692.86

Finding the Fourth Proportional to 136,108.72, 187,838.52 and 75,692.86

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Solution

The fourth proportional to 136,108.72, 187,838.52 and 75,692.86 is: 104,460.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,108.72 : 187,838.52 = 75,692.86 : x
  2. Step 2: Convert to fraction form
    136,108.72/187,838.52 = 75,692.86/x
  3. Step 3: Cross multiply
    136,108.72x = 187,838.52 × 75,692.86
  4. Step 4: Simplify right side
    136,108.72x = 14,218,034,796.97
  5. Step 5: Solve for x
    x = 14,218,034,796.97/136,108.72
  6. Step 6: Final answer
    x = 104,460.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.