Home / 136,918.54-205,289.92-57,011.91

Finding the Fourth Proportional to 136,918.54, 205,289.92 and 57,011.91

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Solution

The fourth proportional to 136,918.54, 205,289.92 and 57,011.91 is: 85,481.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,918.54 : 205,289.92 = 57,011.91 : x
  2. Step 2: Convert to fraction form
    136,918.54/205,289.92 = 57,011.91/x
  3. Step 3: Cross multiply
    136,918.54x = 205,289.92 × 57,011.91
  4. Step 4: Simplify right side
    136,918.54x = 11,703,970,442.95
  5. Step 5: Solve for x
    x = 11,703,970,442.95/136,918.54
  6. Step 6: Final answer
    x = 85,481.27

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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.