Home / 116,989.74-161,465.69-66,016.92

Finding the Fourth Proportional to 116,989.74, 161,465.69 and 66,016.92

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Solution

The fourth proportional to 116,989.74, 161,465.69 and 66,016.92 is: 91,114.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,989.74 : 161,465.69 = 66,016.92 : x
  2. Step 2: Convert to fraction form
    116,989.74/161,465.69 = 66,016.92/x
  3. Step 3: Cross multiply
    116,989.74x = 161,465.69 × 66,016.92
  4. Step 4: Simplify right side
    116,989.74x = 10,659,467,539.47
  5. Step 5: Solve for x
    x = 10,659,467,539.47/116,989.74
  6. Step 6: Final answer
    x = 91,114.55

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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.