Home / 106,936.74-147,572.83-66,650.47

Finding the Fourth Proportional to 106,936.74, 147,572.83 and 66,650.47

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Solution

The fourth proportional to 106,936.74, 147,572.83 and 66,650.47 is: 91,977.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,936.74 : 147,572.83 = 66,650.47 : x
  2. Step 2: Convert to fraction form
    106,936.74/147,572.83 = 66,650.47/x
  3. Step 3: Cross multiply
    106,936.74x = 147,572.83 × 66,650.47
  4. Step 4: Simplify right side
    106,936.74x = 9,835,798,193.11
  5. Step 5: Solve for x
    x = 9,835,798,193.11/106,936.74
  6. Step 6: Final answer
    x = 91,977.73

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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.