Home / 102,185.54-140,936.15-66,387.08

Finding the Fourth Proportional to 102,185.54, 140,936.15 and 66,387.08

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Solution

The fourth proportional to 102,185.54, 140,936.15 and 66,387.08 is: 91,562.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,185.54 : 140,936.15 = 66,387.08 : x
  2. Step 2: Convert to fraction form
    102,185.54/140,936.15 = 66,387.08/x
  3. Step 3: Cross multiply
    102,185.54x = 140,936.15 × 66,387.08
  4. Step 4: Simplify right side
    102,185.54x = 9,356,338,428.33
  5. Step 5: Solve for x
    x = 9,356,338,428.33/102,185.54
  6. Step 6: Final answer
    x = 91,562.26

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1.5x scale

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.