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Finding the Fourth Proportional to 103,442.90, 155,193.15 and 50,854.10

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Solution

The fourth proportional to 103,442.90, 155,193.15 and 50,854.10 is: 76,295.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,442.90 : 155,193.15 = 50,854.10 : x
  2. Step 2: Convert to fraction form
    103,442.90/155,193.15 = 50,854.10/x
  3. Step 3: Cross multiply
    103,442.90x = 155,193.15 × 50,854.10
  4. Step 4: Simplify right side
    103,442.90x = 7,892,207,969.42
  5. Step 5: Solve for x
    x = 7,892,207,969.42/103,442.90
  6. Step 6: Final answer
    x = 76,295.31

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.