Home / 136,150.39-204,012.21-86,124.82

Finding the Fourth Proportional to 136,150.39, 204,012.21 and 86,124.82

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Solution

The fourth proportional to 136,150.39, 204,012.21 and 86,124.82 is: 129,052.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,150.39 : 204,012.21 = 86,124.82 : x
  2. Step 2: Convert to fraction form
    136,150.39/204,012.21 = 86,124.82/x
  3. Step 3: Cross multiply
    136,150.39x = 204,012.21 × 86,124.82
  4. Step 4: Simplify right side
    136,150.39x = 17,570,514,864.05
  5. Step 5: Solve for x
    x = 17,570,514,864.05/136,150.39
  6. Step 6: Final answer
    x = 129,052.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.