Home / 116,879.40-161,295.30-66,577.32

Finding the Fourth Proportional to 116,879.40, 161,295.30 and 66,577.32

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Solution

The fourth proportional to 116,879.40, 161,295.30 and 66,577.32 is: 91,877.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,879.40 : 161,295.30 = 66,577.32 : x
  2. Step 2: Convert to fraction form
    116,879.40/161,295.30 = 66,577.32/x
  3. Step 3: Cross multiply
    116,879.40x = 161,295.30 × 66,577.32
  4. Step 4: Simplify right side
    116,879.40x = 10,738,608,802.60
  5. Step 5: Solve for x
    x = 10,738,608,802.60/116,879.40
  6. Step 6: Final answer
    x = 91,877.69

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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.