Home / 123,194.78-170,008.43-66,606.15

Finding the Fourth Proportional to 123,194.78, 170,008.43 and 66,606.15

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Solution

The fourth proportional to 123,194.78, 170,008.43 and 66,606.15 is: 91,916.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,194.78 : 170,008.43 = 66,606.15 : x
  2. Step 2: Convert to fraction form
    123,194.78/170,008.43 = 66,606.15/x
  3. Step 3: Cross multiply
    123,194.78x = 170,008.43 × 66,606.15
  4. Step 4: Simplify right side
    123,194.78x = 11,323,606,656.81
  5. Step 5: Solve for x
    x = 11,323,606,656.81/123,194.78
  6. Step 6: Final answer
    x = 91,916.29

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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.