Home / 123,195.30-170,009.37-66,606.54

Finding the Fourth Proportional to 123,195.30, 170,009.37 and 66,606.54

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Solution

The fourth proportional to 123,195.30, 170,009.37 and 66,606.54 is: 91,916.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,195.30 : 170,009.37 = 66,606.54 : x
  2. Step 2: Convert to fraction form
    123,195.30/170,009.37 = 66,606.54/x
  3. Step 3: Cross multiply
    123,195.30x = 170,009.37 × 66,606.54
  4. Step 4: Simplify right side
    123,195.30x = 11,323,735,903.28
  5. Step 5: Solve for x
    x = 11,323,735,903.28/123,195.30
  6. Step 6: Final answer
    x = 91,916.95

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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.