Home / 116,739.80-161,112.38-68,338.81

Finding the Fourth Proportional to 116,739.80, 161,112.38 and 68,338.81

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Solution

The fourth proportional to 116,739.80, 161,112.38 and 68,338.81 is: 94,314.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,739.80 : 161,112.38 = 68,338.81 : x
  2. Step 2: Convert to fraction form
    116,739.80/161,112.38 = 68,338.81/x
  3. Step 3: Cross multiply
    116,739.80x = 161,112.38 × 68,338.81
  4. Step 4: Simplify right side
    116,739.80x = 11,010,227,278.91
  5. Step 5: Solve for x
    x = 11,010,227,278.91/116,739.80
  6. Step 6: Final answer
    x = 94,314.26

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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.