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Finding the Fourth Proportional to 145,755.54, 218,293.11 and 112,209.39

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Solution

The fourth proportional to 145,755.54, 218,293.11 and 112,209.39 is: 168,052.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,755.54 : 218,293.11 = 112,209.39 : x
  2. Step 2: Convert to fraction form
    145,755.54/218,293.11 = 112,209.39/x
  3. Step 3: Cross multiply
    145,755.54x = 218,293.11 × 112,209.39
  4. Step 4: Simplify right side
    145,755.54x = 24,494,536,714.30
  5. Step 5: Solve for x
    x = 24,494,536,714.30/145,755.54
  6. Step 6: Final answer
    x = 168,052.18

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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.