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Finding the Fourth Proportional to 133,857.77, 184,720.35 and 76,493.45

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Solution

The fourth proportional to 133,857.77, 184,720.35 and 76,493.45 is: 105,559.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,857.77 : 184,720.35 = 76,493.45 : x
  2. Step 2: Convert to fraction form
    133,857.77/184,720.35 = 76,493.45/x
  3. Step 3: Cross multiply
    133,857.77x = 184,720.35 × 76,493.45
  4. Step 4: Simplify right side
    133,857.77x = 14,129,896,136.03
  5. Step 5: Solve for x
    x = 14,129,896,136.03/133,857.77
  6. Step 6: Final answer
    x = 105,559.03

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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.