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Finding the Fourth Proportional to 139,798.20, 209,522.43 and 110,098.74

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Solution

The fourth proportional to 139,798.20, 209,522.43 and 110,098.74 is: 165,010.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,798.20 : 209,522.43 = 110,098.74 : x
  2. Step 2: Convert to fraction form
    139,798.20/209,522.43 = 110,098.74/x
  3. Step 3: Cross multiply
    139,798.20x = 209,522.43 × 110,098.74
  4. Step 4: Simplify right side
    139,798.20x = 23,068,155,544.74
  5. Step 5: Solve for x
    x = 23,068,155,544.74/139,798.20
  6. Step 6: Final answer
    x = 165,010.39

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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.