Home / 116,745.18-161,109.09-66,444.18

Finding the Fourth Proportional to 116,745.18, 161,109.09 and 66,444.18

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Solution

The fourth proportional to 116,745.18, 161,109.09 and 66,444.18 is: 91,693.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,745.18 : 161,109.09 = 66,444.18 : x
  2. Step 2: Convert to fraction form
    116,745.18/161,109.09 = 66,444.18/x
  3. Step 3: Cross multiply
    116,745.18x = 161,109.09 × 66,444.18
  4. Step 4: Simplify right side
    116,745.18x = 10,704,761,375.60
  5. Step 5: Solve for x
    x = 10,704,761,375.60/116,745.18
  6. Step 6: Final answer
    x = 91,693.39

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1.5x scale

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.