Home / 118,985.72-164,198.76-67,997.87

Finding the Fourth Proportional to 118,985.72, 164,198.76 and 67,997.87

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Solution

The fourth proportional to 118,985.72, 164,198.76 and 67,997.87 is: 93,836.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,985.72 : 164,198.76 = 67,997.87 : x
  2. Step 2: Convert to fraction form
    118,985.72/164,198.76 = 67,997.87/x
  3. Step 3: Cross multiply
    118,985.72x = 164,198.76 × 67,997.87
  4. Step 4: Simplify right side
    118,985.72x = 11,165,165,936.64
  5. Step 5: Solve for x
    x = 11,165,165,936.64/118,985.72
  6. Step 6: Final answer
    x = 93,836.18

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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.