Home / 118,634.62-163,623.36-76,197.10

Finding the Fourth Proportional to 118,634.62, 163,623.36 and 76,197.10

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Solution

The fourth proportional to 118,634.62, 163,623.36 and 76,197.10 is: 105,092.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,634.62 : 163,623.36 = 76,197.10 : x
  2. Step 2: Convert to fraction form
    118,634.62/163,623.36 = 76,197.10/x
  3. Step 3: Cross multiply
    118,634.62x = 163,623.36 × 76,197.10
  4. Step 4: Simplify right side
    118,634.62x = 12,467,625,524.26
  5. Step 5: Solve for x
    x = 12,467,625,524.26/118,634.62
  6. Step 6: Final answer
    x = 105,092.64

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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.