Home / 138,106.86-206,012.73-135,823.26

Finding the Fourth Proportional to 138,106.86, 206,012.73 and 135,823.26

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Solution

The fourth proportional to 138,106.86, 206,012.73 and 135,823.26 is: 202,606.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,106.86 : 206,012.73 = 135,823.26 : x
  2. Step 2: Convert to fraction form
    138,106.86/206,012.73 = 135,823.26/x
  3. Step 3: Cross multiply
    138,106.86x = 206,012.73 × 135,823.26
  4. Step 4: Simplify right side
    138,106.86x = 27,981,320,590.10
  5. Step 5: Solve for x
    x = 27,981,320,590.10/138,106.86
  6. Step 6: Final answer
    x = 202,606.30

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.