Home / 117,079.96-161,571.36-66,782.20

Finding the Fourth Proportional to 117,079.96, 161,571.36 and 66,782.20

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Solution

The fourth proportional to 117,079.96, 161,571.36 and 66,782.20 is: 92,160.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,079.96 : 161,571.36 = 66,782.20 : x
  2. Step 2: Convert to fraction form
    117,079.96/161,571.36 = 66,782.20/x
  3. Step 3: Cross multiply
    117,079.96x = 161,571.36 × 66,782.20
  4. Step 4: Simplify right side
    117,079.96x = 10,790,090,877.79
  5. Step 5: Solve for x
    x = 10,790,090,877.79/117,079.96
  6. Step 6: Final answer
    x = 92,160.02

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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.