Home / 116,862.40-161,231.38-65,868.85

Finding the Fourth Proportional to 116,862.40, 161,231.38 and 65,868.85

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Solution

The fourth proportional to 116,862.40, 161,231.38 and 65,868.85 is: 90,877.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,862.40 : 161,231.38 = 65,868.85 : x
  2. Step 2: Convert to fraction form
    116,862.40/161,231.38 = 65,868.85/x
  3. Step 3: Cross multiply
    116,862.40x = 161,231.38 × 65,868.85
  4. Step 4: Simplify right side
    116,862.40x = 10,620,125,584.51
  5. Step 5: Solve for x
    x = 10,620,125,584.51/116,862.40
  6. Step 6: Final answer
    x = 90,877.18

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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.