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Finding the Fourth Proportional to 169,575.38, 254,368.50 and 85,289.54

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Solution

The fourth proportional to 169,575.38, 254,368.50 and 85,289.54 is: 127,937.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,575.38 : 254,368.50 = 85,289.54 : x
  2. Step 2: Convert to fraction form
    169,575.38/254,368.50 = 85,289.54/x
  3. Step 3: Cross multiply
    169,575.38x = 254,368.50 × 85,289.54
  4. Step 4: Simplify right side
    169,575.38x = 21,694,970,657.20
  5. Step 5: Solve for x
    x = 21,694,970,657.20/169,575.38
  6. Step 6: Final answer
    x = 127,937.03

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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.