Home / 133,985.69-184,893.28-79,540.11

Finding the Fourth Proportional to 133,985.69, 184,893.28 and 79,540.11

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Solution

The fourth proportional to 133,985.69, 184,893.28 and 79,540.11 is: 109,761.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,985.69 : 184,893.28 = 79,540.11 : x
  2. Step 2: Convert to fraction form
    133,985.69/184,893.28 = 79,540.11/x
  3. Step 3: Cross multiply
    133,985.69x = 184,893.28 × 79,540.11
  4. Step 4: Simplify right side
    133,985.69x = 14,706,431,829.46
  5. Step 5: Solve for x
    x = 14,706,431,829.46/133,985.69
  6. Step 6: Final answer
    x = 109,761.21

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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.