Home / 116,735.68-161,095.98-66,434.68

Finding the Fourth Proportional to 116,735.68, 161,095.98 and 66,434.68

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Solution

The fourth proportional to 116,735.68, 161,095.98 and 66,434.68 is: 91,680.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,735.68 : 161,095.98 = 66,434.68 : x
  2. Step 2: Convert to fraction form
    116,735.68/161,095.98 = 66,434.68/x
  3. Step 3: Cross multiply
    116,735.68x = 161,095.98 × 66,434.68
  4. Step 4: Simplify right side
    116,735.68x = 10,702,359,880.59
  5. Step 5: Solve for x
    x = 10,702,359,880.59/116,735.68
  6. Step 6: Final answer
    x = 91,680.28

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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.