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Finding the Fourth Proportional to 104,994.60, 157,491.90 and 103,612.20

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Solution

The fourth proportional to 104,994.60, 157,491.90 and 103,612.20 is: 155,418.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,994.60 : 157,491.90 = 103,612.20 : x
  2. Step 2: Convert to fraction form
    104,994.60/157,491.90 = 103,612.20/x
  3. Step 3: Cross multiply
    104,994.60x = 157,491.90 × 103,612.20
  4. Step 4: Simplify right side
    104,994.60x = 16,318,082,241.18
  5. Step 5: Solve for x
    x = 16,318,082,241.18/104,994.60
  6. Step 6: Final answer
    x = 155,418.30

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1.5x scale

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.