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Finding the Fourth Proportional to 133,430.43, 184,103.85 and 79,704.93

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Solution

The fourth proportional to 133,430.43, 184,103.85 and 79,704.93 is: 109,974.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,430.43 : 184,103.85 = 79,704.93 : x
  2. Step 2: Convert to fraction form
    133,430.43/184,103.85 = 79,704.93/x
  3. Step 3: Cross multiply
    133,430.43x = 184,103.85 × 79,704.93
  4. Step 4: Simplify right side
    133,430.43x = 14,673,984,476.98
  5. Step 5: Solve for x
    x = 14,673,984,476.98/133,430.43
  6. Step 6: Final answer
    x = 109,974.80

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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.