Home / 123,343.15-170,214.06-66,754.52

Finding the Fourth Proportional to 123,343.15, 170,214.06 and 66,754.52

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Solution

The fourth proportional to 123,343.15, 170,214.06 and 66,754.52 is: 92,121.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,343.15 : 170,214.06 = 66,754.52 : x
  2. Step 2: Convert to fraction form
    123,343.15/170,214.06 = 66,754.52/x
  3. Step 3: Cross multiply
    123,343.15x = 170,214.06 × 66,754.52
  4. Step 4: Simplify right side
    123,343.15x = 11,362,557,872.55
  5. Step 5: Solve for x
    x = 11,362,557,872.55/123,343.15
  6. Step 6: Final answer
    x = 92,121.52

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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.