Home / 116,739.03-161,100.51-66,438.03

Finding the Fourth Proportional to 116,739.03, 161,100.51 and 66,438.03

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Solution

The fourth proportional to 116,739.03, 161,100.51 and 66,438.03 is: 91,684.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,739.03 : 161,100.51 = 66,438.03 : x
  2. Step 2: Convert to fraction form
    116,739.03/161,100.51 = 66,438.03/x
  3. Step 3: Cross multiply
    116,739.03x = 161,100.51 × 66,438.03
  4. Step 4: Simplify right side
    116,739.03x = 10,703,200,516.40
  5. Step 5: Solve for x
    x = 10,703,200,516.40/116,739.03
  6. Step 6: Final answer
    x = 91,684.85

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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.