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Finding the Fourth Proportional to 125,173.50, 172,743.48 and 68,588.52

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Solution

The fourth proportional to 125,173.50, 172,743.48 and 68,588.52 is: 94,654.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,173.50 : 172,743.48 = 68,588.52 : x
  2. Step 2: Convert to fraction form
    125,173.50/172,743.48 = 68,588.52/x
  3. Step 3: Cross multiply
    125,173.50x = 172,743.48 × 68,588.52
  4. Step 4: Simplify right side
    125,173.50x = 11,848,219,632.85
  5. Step 5: Solve for x
    x = 11,848,219,632.85/125,173.50
  6. Step 6: Final answer
    x = 94,654.38

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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.