Home / 117,245.68-161,883.56-71,985.04

Finding the Fourth Proportional to 117,245.68, 161,883.56 and 71,985.04

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Solution

The fourth proportional to 117,245.68, 161,883.56 and 71,985.04 is: 99,391.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,245.68 : 161,883.56 = 71,985.04 : x
  2. Step 2: Convert to fraction form
    117,245.68/161,883.56 = 71,985.04/x
  3. Step 3: Cross multiply
    117,245.68x = 161,883.56 × 71,985.04
  4. Step 4: Simplify right side
    117,245.68x = 11,653,194,317.20
  5. Step 5: Solve for x
    x = 11,653,194,317.20/117,245.68
  6. Step 6: Final answer
    x = 99,391.25

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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.