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Finding the Fourth Proportional to 119,157.60, 178,736.26 and 30,411.10

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Solution

The fourth proportional to 119,157.60, 178,736.26 and 30,411.10 is: 45,616.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,157.60 : 178,736.26 = 30,411.10 : x
  2. Step 2: Convert to fraction form
    119,157.60/178,736.26 = 30,411.10/x
  3. Step 3: Cross multiply
    119,157.60x = 178,736.26 × 30,411.10
  4. Step 4: Simplify right side
    119,157.60x = 5,435,566,276.49
  5. Step 5: Solve for x
    x = 5,435,566,276.49/119,157.60
  6. Step 6: Final answer
    x = 45,616.61

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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.