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Finding the Fourth Proportional to 133,779.68, 184,617.52 and 76,426.64

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Solution

The fourth proportional to 133,779.68, 184,617.52 and 76,426.64 is: 105,469.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,779.68 : 184,617.52 = 76,426.64 : x
  2. Step 2: Convert to fraction form
    133,779.68/184,617.52 = 76,426.64/x
  3. Step 3: Cross multiply
    133,779.68x = 184,617.52 × 76,426.64
  4. Step 4: Simplify right side
    133,779.68x = 14,109,696,738.73
  5. Step 5: Solve for x
    x = 14,109,696,738.73/133,779.68
  6. Step 6: Final answer
    x = 105,469.66

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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.