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Finding the Fourth Proportional to 133,603, 184,368.50 and 76,241.28

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Solution

The fourth proportional to 133,603, 184,368.50 and 76,241.28 is: 105,210.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,603 : 184,368.50 = 76,241.28 : x
  2. Step 2: Convert to fraction form
    133,603/184,368.50 = 76,241.28/x
  3. Step 3: Cross multiply
    133,603x = 184,368.50 × 76,241.28
  4. Step 4: Simplify right side
    133,603x = 14,056,490,431.68
  5. Step 5: Solve for x
    x = 14,056,490,431.68/133,603
  6. Step 6: Final answer
    x = 105,210.89

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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.