Home / 144,784.92-199,801.26-81,123.96

Finding the Fourth Proportional to 144,784.92, 199,801.26 and 81,123.96

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Solution

The fourth proportional to 144,784.92, 199,801.26 and 81,123.96 is: 111,949.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,784.92 : 199,801.26 = 81,123.96 : x
  2. Step 2: Convert to fraction form
    144,784.92/199,801.26 = 81,123.96/x
  3. Step 3: Cross multiply
    144,784.92x = 199,801.26 × 81,123.96
  4. Step 4: Simplify right side
    144,784.92x = 16,208,669,424.19
  5. Step 5: Solve for x
    x = 16,208,669,424.19/144,784.92
  6. Step 6: Final answer
    x = 111,949.98

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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.