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Finding the Fourth Proportional to 133,027.76, 183,664.68 and 102,760.40

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Solution

The fourth proportional to 133,027.76, 183,664.68 and 102,760.40 is: 141,876.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,027.76 : 183,664.68 = 102,760.40 : x
  2. Step 2: Convert to fraction form
    133,027.76/183,664.68 = 102,760.40/x
  3. Step 3: Cross multiply
    133,027.76x = 183,664.68 × 102,760.40
  4. Step 4: Simplify right side
    133,027.76x = 18,873,455,982.67
  5. Step 5: Solve for x
    x = 18,873,455,982.67/133,027.76
  6. Step 6: Final answer
    x = 141,876.07

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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.