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Finding the Fourth Proportional to 89,108.34, 133,662.45 and 83,203.44

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Solution

The fourth proportional to 89,108.34, 133,662.45 and 83,203.44 is: 124,805.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,108.34 : 133,662.45 = 83,203.44 : x
  2. Step 2: Convert to fraction form
    89,108.34/133,662.45 = 83,203.44/x
  3. Step 3: Cross multiply
    89,108.34x = 133,662.45 × 83,203.44
  4. Step 4: Simplify right side
    89,108.34x = 11,121,175,449.61
  5. Step 5: Solve for x
    x = 11,121,175,449.61/89,108.34
  6. Step 6: Final answer
    x = 124,805.11

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1.5x scale

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.