Home / 123,491.06-170,418.30-66,902.48

Finding the Fourth Proportional to 123,491.06, 170,418.30 and 66,902.48

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Solution

The fourth proportional to 123,491.06, 170,418.30 and 66,902.48 is: 92,325.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,491.06 : 170,418.30 = 66,902.48 : x
  2. Step 2: Convert to fraction form
    123,491.06/170,418.30 = 66,902.48/x
  3. Step 3: Cross multiply
    123,491.06x = 170,418.30 × 66,902.48
  4. Step 4: Simplify right side
    123,491.06x = 11,401,406,907.38
  5. Step 5: Solve for x
    x = 11,401,406,907.38/123,491.06
  6. Step 6: Final answer
    x = 92,325.77

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1.5x scale

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.