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Finding the Fourth Proportional to 110,979.88, 166,830.69 and 89,033.35

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Solution

The fourth proportional to 110,979.88, 166,830.69 and 89,033.35 is: 133,839.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,979.88 : 166,830.69 = 89,033.35 : x
  2. Step 2: Convert to fraction form
    110,979.88/166,830.69 = 89,033.35/x
  3. Step 3: Cross multiply
    110,979.88x = 166,830.69 × 89,033.35
  4. Step 4: Simplify right side
    110,979.88x = 14,853,495,213.51
  5. Step 5: Solve for x
    x = 14,853,495,213.51/110,979.88
  6. Step 6: Final answer
    x = 133,839.53

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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.