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Finding the Fourth Proportional to 133,645.56, 184,491.40 and 79,206.56

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Solution

The fourth proportional to 133,645.56, 184,491.40 and 79,206.56 is: 109,340.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,645.56 : 184,491.40 = 79,206.56 : x
  2. Step 2: Convert to fraction form
    133,645.56/184,491.40 = 79,206.56/x
  3. Step 3: Cross multiply
    133,645.56x = 184,491.40 × 79,206.56
  4. Step 4: Simplify right side
    133,645.56x = 14,612,929,143.58
  5. Step 5: Solve for x
    x = 14,612,929,143.58/133,645.56
  6. Step 6: Final answer
    x = 109,340.92

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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.