Home / 105,735.26-145,921.38-69,862.34

Finding the Fourth Proportional to 105,735.26, 145,921.38 and 69,862.34

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Solution

The fourth proportional to 105,735.26, 145,921.38 and 69,862.34 is: 96,414.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,735.26 : 145,921.38 = 69,862.34 : x
  2. Step 2: Convert to fraction form
    105,735.26/145,921.38 = 69,862.34/x
  3. Step 3: Cross multiply
    105,735.26x = 145,921.38 × 69,862.34
  4. Step 4: Simplify right side
    105,735.26x = 10,194,409,062.83
  5. Step 5: Solve for x
    x = 10,194,409,062.83/105,735.26
  6. Step 6: Final answer
    x = 96,414.47

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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.