Home / 116,916.56-161,237.26-76,615.69

Finding the Fourth Proportional to 116,916.56, 161,237.26 and 76,615.69

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Solution

The fourth proportional to 116,916.56, 161,237.26 and 76,615.69 is: 105,659.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,916.56 : 161,237.26 = 76,615.69 : x
  2. Step 2: Convert to fraction form
    116,916.56/161,237.26 = 76,615.69/x
  3. Step 3: Cross multiply
    116,916.56x = 161,237.26 × 76,615.69
  4. Step 4: Simplify right side
    116,916.56x = 12,353,303,708.12
  5. Step 5: Solve for x
    x = 12,353,303,708.12/116,916.56
  6. Step 6: Final answer
    x = 105,659.14

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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.