Home / 144,974.86-200,062.84-81,311.28

Finding the Fourth Proportional to 144,974.86, 200,062.84 and 81,311.28

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Solution

The fourth proportional to 144,974.86, 200,062.84 and 81,311.28 is: 112,208.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,974.86 : 200,062.84 = 81,311.28 : x
  2. Step 2: Convert to fraction form
    144,974.86/200,062.84 = 81,311.28/x
  3. Step 3: Cross multiply
    144,974.86x = 200,062.84 × 81,311.28
  4. Step 4: Simplify right side
    144,974.86x = 16,267,365,600.84
  5. Step 5: Solve for x
    x = 16,267,365,600.84/144,974.86
  6. Step 6: Final answer
    x = 112,208.18

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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.