Home / 117,028.43-161,505.02-71,708.93

Finding the Fourth Proportional to 117,028.43, 161,505.02 and 71,708.93

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Solution

The fourth proportional to 117,028.43, 161,505.02 and 71,708.93 is: 98,961.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,028.43 : 161,505.02 = 71,708.93 : x
  2. Step 2: Convert to fraction form
    117,028.43/161,505.02 = 71,708.93/x
  3. Step 3: Cross multiply
    117,028.43x = 161,505.02 × 71,708.93
  4. Step 4: Simplify right side
    117,028.43x = 11,581,352,173.83
  5. Step 5: Solve for x
    x = 11,581,352,173.83/117,028.43
  6. Step 6: Final answer
    x = 98,961.87

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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.