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Finding the Fourth Proportional to 112,625.80, 155,398.80 and 67,297

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Solution

The fourth proportional to 112,625.80, 155,398.80 and 67,297 is: 92,855.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,625.80 : 155,398.80 = 67,297 : x
  2. Step 2: Convert to fraction form
    112,625.80/155,398.80 = 67,297/x
  3. Step 3: Cross multiply
    112,625.80x = 155,398.80 × 67,297
  4. Step 4: Simplify right side
    112,625.80x = 10,457,873,043.60
  5. Step 5: Solve for x
    x = 10,457,873,043.60/112,625.80
  6. Step 6: Final answer
    x = 92,855.04

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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.