Home / 116,766.72-161,137.44-65,779.28

Finding the Fourth Proportional to 116,766.72, 161,137.44 and 65,779.28

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Solution

The fourth proportional to 116,766.72, 161,137.44 and 65,779.28 is: 90,775.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,766.72 : 161,137.44 = 65,779.28 : x
  2. Step 2: Convert to fraction form
    116,766.72/161,137.44 = 65,779.28/x
  3. Step 3: Cross multiply
    116,766.72x = 161,137.44 × 65,779.28
  4. Step 4: Simplify right side
    116,766.72x = 10,599,504,784.24
  5. Step 5: Solve for x
    x = 10,599,504,784.24/116,766.72
  6. Step 6: Final answer
    x = 90,775.05

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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.