Home / 192,869.36-266,160.12-107,990

Finding the Fourth Proportional to 192,869.36, 266,160.12 and 107,990

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Solution

The fourth proportional to 192,869.36, 266,160.12 and 107,990 is: 149,026.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,869.36 : 266,160.12 = 107,990 : x
  2. Step 2: Convert to fraction form
    192,869.36/266,160.12 = 107,990/x
  3. Step 3: Cross multiply
    192,869.36x = 266,160.12 × 107,990
  4. Step 4: Simplify right side
    192,869.36x = 28,742,631,358.80
  5. Step 5: Solve for x
    x = 28,742,631,358.80/192,869.36
  6. Step 6: Final answer
    x = 149,026.43

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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.