Home / 188,143.53-259,638.15-107,572.65

Finding the Fourth Proportional to 188,143.53, 259,638.15 and 107,572.65

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Solution

The fourth proportional to 188,143.53, 259,638.15 and 107,572.65 is: 148,450.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,143.53 : 259,638.15 = 107,572.65 : x
  2. Step 2: Convert to fraction form
    188,143.53/259,638.15 = 107,572.65/x
  3. Step 3: Cross multiply
    188,143.53x = 259,638.15 × 107,572.65
  4. Step 4: Simplify right side
    188,143.53x = 27,929,963,836.60
  5. Step 5: Solve for x
    x = 27,929,963,836.60/188,143.53
  6. Step 6: Final answer
    x = 148,450.30

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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.