Home / 123,195.15-170,008.94-66,606.53

Finding the Fourth Proportional to 123,195.15, 170,008.94 and 66,606.53

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Solution

The fourth proportional to 123,195.15, 170,008.94 and 66,606.53 is: 91,916.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,195.15 : 170,008.94 = 66,606.53 : x
  2. Step 2: Convert to fraction form
    123,195.15/170,008.94 = 66,606.53/x
  3. Step 3: Cross multiply
    123,195.15x = 170,008.94 × 66,606.53
  4. Step 4: Simplify right side
    123,195.15x = 11,323,704,379.30
  5. Step 5: Solve for x
    x = 11,323,704,379.30/123,195.15
  6. Step 6: Final answer
    x = 91,916.80

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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.