Home / 209,822.60-314,733.90-131,025.80

Finding the Fourth Proportional to 209,822.60, 314,733.90 and 131,025.80

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Solution

The fourth proportional to 209,822.60, 314,733.90 and 131,025.80 is: 196,538.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,822.60 : 314,733.90 = 131,025.80 : x
  2. Step 2: Convert to fraction form
    209,822.60/314,733.90 = 131,025.80/x
  3. Step 3: Cross multiply
    209,822.60x = 314,733.90 × 131,025.80
  4. Step 4: Simplify right side
    209,822.60x = 41,238,261,034.62
  5. Step 5: Solve for x
    x = 41,238,261,034.62/209,822.60
  6. Step 6: Final answer
    x = 196,538.70

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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.