Home / 118,057.45-162,919.81-67,072.96

Finding the Fourth Proportional to 118,057.45, 162,919.81 and 67,072.96

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Solution

The fourth proportional to 118,057.45, 162,919.81 and 67,072.96 is: 92,560.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,057.45 : 162,919.81 = 67,072.96 : x
  2. Step 2: Convert to fraction form
    118,057.45/162,919.81 = 67,072.96/x
  3. Step 3: Cross multiply
    118,057.45x = 162,919.81 × 67,072.96
  4. Step 4: Simplify right side
    118,057.45x = 10,927,513,809.54
  5. Step 5: Solve for x
    x = 10,927,513,809.54/118,057.45
  6. Step 6: Final answer
    x = 92,560.99

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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.