Home / 116,634.57-161,033.18-89,729.61

Finding the Fourth Proportional to 116,634.57, 161,033.18 and 89,729.61

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Solution

The fourth proportional to 116,634.57, 161,033.18 and 89,729.61 is: 123,886.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,634.57 : 161,033.18 = 89,729.61 : x
  2. Step 2: Convert to fraction form
    116,634.57/161,033.18 = 89,729.61/x
  3. Step 3: Cross multiply
    116,634.57x = 161,033.18 × 89,729.61
  4. Step 4: Simplify right side
    116,634.57x = 14,449,443,989.81
  5. Step 5: Solve for x
    x = 14,449,443,989.81/116,634.57
  6. Step 6: Final answer
    x = 123,886.46

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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.