Home / 117,218.31-161,761.07-63,504.69

Finding the Fourth Proportional to 117,218.31, 161,761.07 and 63,504.69

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Solution

The fourth proportional to 117,218.31, 161,761.07 and 63,504.69 is: 87,636.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,218.31 : 161,761.07 = 63,504.69 : x
  2. Step 2: Convert to fraction form
    117,218.31/161,761.07 = 63,504.69/x
  3. Step 3: Cross multiply
    117,218.31x = 161,761.07 × 63,504.69
  4. Step 4: Simplify right side
    117,218.31x = 10,272,586,763.18
  5. Step 5: Solve for x
    x = 10,272,586,763.18/117,218.31
  6. Step 6: Final answer
    x = 87,636.37

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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.