Home / 116,915.56-161,305.40-71,546.20

Finding the Fourth Proportional to 116,915.56, 161,305.40 and 71,546.20

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Solution

The fourth proportional to 116,915.56, 161,305.40 and 71,546.20 is: 98,710.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,915.56 : 161,305.40 = 71,546.20 : x
  2. Step 2: Convert to fraction form
    116,915.56/161,305.40 = 71,546.20/x
  3. Step 3: Cross multiply
    116,915.56x = 161,305.40 × 71,546.20
  4. Step 4: Simplify right side
    116,915.56x = 11,540,788,409.48
  5. Step 5: Solve for x
    x = 11,540,788,409.48/116,915.56
  6. Step 6: Final answer
    x = 98,710.46

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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.