Home / 123,531.90-170,474.07-66,943.02

Finding the Fourth Proportional to 123,531.90, 170,474.07 and 66,943.02

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Solution

The fourth proportional to 123,531.90, 170,474.07 and 66,943.02 is: 92,381.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,531.90 : 170,474.07 = 66,943.02 : x
  2. Step 2: Convert to fraction form
    123,531.90/170,474.07 = 66,943.02/x
  3. Step 3: Cross multiply
    123,531.90x = 170,474.07 × 66,943.02
  4. Step 4: Simplify right side
    123,531.90x = 11,412,049,077.49
  5. Step 5: Solve for x
    x = 11,412,049,077.49/123,531.90
  6. Step 6: Final answer
    x = 92,381.39

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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.