Home / 144,923.38-199,991.72-81,260.98

Finding the Fourth Proportional to 144,923.38, 199,991.72 and 81,260.98

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Solution

The fourth proportional to 144,923.38, 199,991.72 and 81,260.98 is: 112,138.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,923.38 : 199,991.72 = 81,260.98 : x
  2. Step 2: Convert to fraction form
    144,923.38/199,991.72 = 81,260.98/x
  3. Step 3: Cross multiply
    144,923.38x = 199,991.72 × 81,260.98
  4. Step 4: Simplify right side
    144,923.38x = 16,251,523,159.09
  5. Step 5: Solve for x
    x = 16,251,523,159.09/144,923.38
  6. Step 6: Final answer
    x = 112,138.73

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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.