Home / 123,531.75-170,474.63-66,943.53

Finding the Fourth Proportional to 123,531.75, 170,474.63 and 66,943.53

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Solution

The fourth proportional to 123,531.75, 170,474.63 and 66,943.53 is: 92,382.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,531.75 : 170,474.63 = 66,943.53 : x
  2. Step 2: Convert to fraction form
    123,531.75/170,474.63 = 66,943.53/x
  3. Step 3: Cross multiply
    123,531.75x = 170,474.63 × 66,943.53
  4. Step 4: Simplify right side
    123,531.75x = 11,412,173,172.93
  5. Step 5: Solve for x
    x = 11,412,173,172.93/123,531.75
  6. Step 6: Final answer
    x = 92,382.51

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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.