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Finding the Fourth Proportional to 169,404.88, 254,259.64 and 90,586.48

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Solution

The fourth proportional to 169,404.88, 254,259.64 and 90,586.48 is: 135,961.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,404.88 : 254,259.64 = 90,586.48 : x
  2. Step 2: Convert to fraction form
    169,404.88/254,259.64 = 90,586.48/x
  3. Step 3: Cross multiply
    169,404.88x = 254,259.64 × 90,586.48
  4. Step 4: Simplify right side
    169,404.88x = 23,032,485,793.67
  5. Step 5: Solve for x
    x = 23,032,485,793.67/169,404.88
  6. Step 6: Final answer
    x = 135,961.17

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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.