Home / 116,945.64-161,386.98-66,645.48

Finding the Fourth Proportional to 116,945.64, 161,386.98 and 66,645.48

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Solution

The fourth proportional to 116,945.64, 161,386.98 and 66,645.48 is: 91,971.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,945.64 : 161,386.98 = 66,645.48 : x
  2. Step 2: Convert to fraction form
    116,945.64/161,386.98 = 66,645.48/x
  3. Step 3: Cross multiply
    116,945.64x = 161,386.98 × 66,645.48
  4. Step 4: Simplify right side
    116,945.64x = 10,755,712,747.85
  5. Step 5: Solve for x
    x = 10,755,712,747.85/116,945.64
  6. Step 6: Final answer
    x = 91,971.90

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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.