Home / 133,636.40-184,418.07-72,382.56

Finding the Fourth Proportional to 133,636.40, 184,418.07 and 72,382.56

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Solution

The fourth proportional to 133,636.40, 184,418.07 and 72,382.56 is: 99,887.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,636.40 : 184,418.07 = 72,382.56 : x
  2. Step 2: Convert to fraction form
    133,636.40/184,418.07 = 72,382.56/x
  3. Step 3: Cross multiply
    133,636.40x = 184,418.07 × 72,382.56
  4. Step 4: Simplify right side
    133,636.40x = 13,348,652,016.86
  5. Step 5: Solve for x
    x = 13,348,652,016.86/133,636.40
  6. Step 6: Final answer
    x = 99,887.85

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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.