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Finding the Fourth Proportional to 118,985.97, 164,199.11 and 67,998.12

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Solution

The fourth proportional to 118,985.97, 164,199.11 and 67,998.12 is: 93,836.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,985.97 : 164,199.11 = 67,998.12 : x
  2. Step 2: Convert to fraction form
    118,985.97/164,199.11 = 67,998.12/x
  3. Step 3: Cross multiply
    118,985.97x = 164,199.11 × 67,998.12
  4. Step 4: Simplify right side
    118,985.97x = 11,165,229,624.69
  5. Step 5: Solve for x
    x = 11,165,229,624.69/118,985.97
  6. Step 6: Final answer
    x = 93,836.52

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1.5x scale

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.