Home / 136,073.08-187,784.70-82,367.80

Finding the Fourth Proportional to 136,073.08, 187,784.70 and 82,367.80

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Solution

The fourth proportional to 136,073.08, 187,784.70 and 82,367.80 is: 113,669.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,073.08 : 187,784.70 = 82,367.80 : x
  2. Step 2: Convert to fraction form
    136,073.08/187,784.70 = 82,367.80/x
  3. Step 3: Cross multiply
    136,073.08x = 187,784.70 × 82,367.80
  4. Step 4: Simplify right side
    136,073.08x = 15,467,412,612.66
  5. Step 5: Solve for x
    x = 15,467,412,612.66/136,073.08
  6. Step 6: Final answer
    x = 113,669.89

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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.