Home / 144,056.45-198,809.17-80,403.82

Finding the Fourth Proportional to 144,056.45, 198,809.17 and 80,403.82

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Solution

The fourth proportional to 144,056.45, 198,809.17 and 80,403.82 is: 110,963.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,056.45 : 198,809.17 = 80,403.82 : x
  2. Step 2: Convert to fraction form
    144,056.45/198,809.17 = 80,403.82/x
  3. Step 3: Cross multiply
    144,056.45x = 198,809.17 × 80,403.82
  4. Step 4: Simplify right side
    144,056.45x = 15,985,016,021.00
  5. Step 5: Solve for x
    x = 15,985,016,021.00/144,056.45
  6. Step 6: Final answer
    x = 110,963.55

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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.