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Finding the Fourth Proportional to 118,630.84, 163,511.04 and 89,941

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Solution

The fourth proportional to 118,630.84, 163,511.04 and 89,941 is: 123,967.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,630.84 : 163,511.04 = 89,941 : x
  2. Step 2: Convert to fraction form
    118,630.84/163,511.04 = 89,941/x
  3. Step 3: Cross multiply
    118,630.84x = 163,511.04 × 89,941
  4. Step 4: Simplify right side
    118,630.84x = 14,706,346,448.64
  5. Step 5: Solve for x
    x = 14,706,346,448.64/118,630.84
  6. Step 6: Final answer
    x = 123,967.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.