Home / 151,102.86-208,517.76-82,190.04

Finding the Fourth Proportional to 151,102.86, 208,517.76 and 82,190.04

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Solution

The fourth proportional to 151,102.86, 208,517.76 and 82,190.04 is: 113,419.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,102.86 : 208,517.76 = 82,190.04 : x
  2. Step 2: Convert to fraction form
    151,102.86/208,517.76 = 82,190.04/x
  3. Step 3: Cross multiply
    151,102.86x = 208,517.76 × 82,190.04
  4. Step 4: Simplify right side
    151,102.86x = 17,138,083,035.11
  5. Step 5: Solve for x
    x = 17,138,083,035.11/151,102.86
  6. Step 6: Final answer
    x = 113,419.98

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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.