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Finding the Fourth Proportional to 133,360.56, 183,742.20 and 87,958.44

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Solution

The fourth proportional to 133,360.56, 183,742.20 and 87,958.44 is: 121,187.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,360.56 : 183,742.20 = 87,958.44 : x
  2. Step 2: Convert to fraction form
    133,360.56/183,742.20 = 87,958.44/x
  3. Step 3: Cross multiply
    133,360.56x = 183,742.20 × 87,958.44
  4. Step 4: Simplify right side
    133,360.56x = 16,161,677,274.17
  5. Step 5: Solve for x
    x = 16,161,677,274.17/133,360.56
  6. Step 6: Final answer
    x = 121,187.83

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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.