Home / 136,400.67-188,238.74-75,971.30

Finding the Fourth Proportional to 136,400.67, 188,238.74 and 75,971.30

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Solution

The fourth proportional to 136,400.67, 188,238.74 and 75,971.30 is: 104,843.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,400.67 : 188,238.74 = 75,971.30 : x
  2. Step 2: Convert to fraction form
    136,400.67/188,238.74 = 75,971.30/x
  3. Step 3: Cross multiply
    136,400.67x = 188,238.74 × 75,971.30
  4. Step 4: Simplify right side
    136,400.67x = 14,300,740,467.11
  5. Step 5: Solve for x
    x = 14,300,740,467.11/136,400.67
  6. Step 6: Final answer
    x = 104,843.62

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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.