Home / 118,113.90-162,991.64-67,125.36

Finding the Fourth Proportional to 118,113.90, 162,991.64 and 67,125.36

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Solution

The fourth proportional to 118,113.90, 162,991.64 and 67,125.36 is: 92,629.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,113.90 : 162,991.64 = 67,125.36 : x
  2. Step 2: Convert to fraction form
    118,113.90/162,991.64 = 67,125.36/x
  3. Step 3: Cross multiply
    118,113.90x = 162,991.64 × 67,125.36
  4. Step 4: Simplify right side
    118,113.90x = 10,940,872,511.99
  5. Step 5: Solve for x
    x = 10,940,872,511.99/118,113.90
  6. Step 6: Final answer
    x = 92,629.85

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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.