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Finding the Fourth Proportional to 243,081.75, 364,581.60 and 89,175.99

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Solution

The fourth proportional to 243,081.75, 364,581.60 and 89,175.99 is: 133,748.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,081.75 : 364,581.60 = 89,175.99 : x
  2. Step 2: Convert to fraction form
    243,081.75/364,581.60 = 89,175.99/x
  3. Step 3: Cross multiply
    243,081.75x = 364,581.60 × 89,175.99
  4. Step 4: Simplify right side
    243,081.75x = 32,511,925,115.78
  5. Step 5: Solve for x
    x = 32,511,925,115.78/243,081.75
  6. Step 6: Final answer
    x = 133,748.93

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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.