Home / 149,496.62-206,306.94-81,513.02

Finding the Fourth Proportional to 149,496.62, 206,306.94 and 81,513.02

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Solution

The fourth proportional to 149,496.62, 206,306.94 and 81,513.02 is: 112,488.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,496.62 : 206,306.94 = 81,513.02 : x
  2. Step 2: Convert to fraction form
    149,496.62/206,306.94 = 81,513.02/x
  3. Step 3: Cross multiply
    149,496.62x = 206,306.94 × 81,513.02
  4. Step 4: Simplify right side
    149,496.62x = 16,816,701,726.36
  5. Step 5: Solve for x
    x = 16,816,701,726.36/149,496.62
  6. Step 6: Final answer
    x = 112,488.84

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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.