Home / 116,986.40-161,441.26-66,009.93

Finding the Fourth Proportional to 116,986.40, 161,441.26 and 66,009.93

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Solution

The fourth proportional to 116,986.40, 161,441.26 and 66,009.93 is: 91,093.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,986.40 : 161,441.26 = 66,009.93 : x
  2. Step 2: Convert to fraction form
    116,986.40/161,441.26 = 66,009.93/x
  3. Step 3: Cross multiply
    116,986.40x = 161,441.26 × 66,009.93
  4. Step 4: Simplify right side
    116,986.40x = 10,656,726,271.71
  5. Step 5: Solve for x
    x = 10,656,726,271.71/116,986.40
  6. Step 6: Final answer
    x = 91,093.72

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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.