Home / 139,623.01-207,855.25-138,792.62

Finding the Fourth Proportional to 139,623.01, 207,855.25 and 138,792.62

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Solution

The fourth proportional to 139,623.01, 207,855.25 and 138,792.62 is: 206,619.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,623.01 : 207,855.25 = 138,792.62 : x
  2. Step 2: Convert to fraction form
    139,623.01/207,855.25 = 138,792.62/x
  3. Step 3: Cross multiply
    139,623.01x = 207,855.25 × 138,792.62
  4. Step 4: Simplify right side
    139,623.01x = 28,848,774,900.91
  5. Step 5: Solve for x
    x = 28,848,774,900.91/139,623.01
  6. Step 6: Final answer
    x = 206,619.06

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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.