Home / 117,019.44-161,475.12-66,027.60

Finding the Fourth Proportional to 117,019.44, 161,475.12 and 66,027.60

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Solution

The fourth proportional to 117,019.44, 161,475.12 and 66,027.60 is: 91,111.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,019.44 : 161,475.12 = 66,027.60 : x
  2. Step 2: Convert to fraction form
    117,019.44/161,475.12 = 66,027.60/x
  3. Step 3: Cross multiply
    117,019.44x = 161,475.12 × 66,027.60
  4. Step 4: Simplify right side
    117,019.44x = 10,661,814,633.31
  5. Step 5: Solve for x
    x = 10,661,814,633.31/117,019.44
  6. Step 6: Final answer
    x = 91,111.48

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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.