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Finding the Fourth Proportional to 230,164.08, 345,107.88 and 89,988.72

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Solution

The fourth proportional to 230,164.08, 345,107.88 and 89,988.72 is: 134,929.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,164.08 : 345,107.88 = 89,988.72 : x
  2. Step 2: Convert to fraction form
    230,164.08/345,107.88 = 89,988.72/x
  3. Step 3: Cross multiply
    230,164.08x = 345,107.88 × 89,988.72
  4. Step 4: Simplify right side
    230,164.08x = 31,055,816,383.11
  5. Step 5: Solve for x
    x = 31,055,816,383.11/230,164.08
  6. Step 6: Final answer
    x = 134,929.03

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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.