Home / 118,939.14-164,136.23-65,224.54

Finding the Fourth Proportional to 118,939.14, 164,136.23 and 65,224.54

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Solution

The fourth proportional to 118,939.14, 164,136.23 and 65,224.54 is: 90,009.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,939.14 : 164,136.23 = 65,224.54 : x
  2. Step 2: Convert to fraction form
    118,939.14/164,136.23 = 65,224.54/x
  3. Step 3: Cross multiply
    118,939.14x = 164,136.23 × 65,224.54
  4. Step 4: Simplify right side
    118,939.14x = 10,705,710,268.59
  5. Step 5: Solve for x
    x = 10,705,710,268.59/118,939.14
  6. Step 6: Final answer
    x = 90,009.98

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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.