Home / 123,494.65-170,422.79-66,906.02

Finding the Fourth Proportional to 123,494.65, 170,422.79 and 66,906.02

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Solution

The fourth proportional to 123,494.65, 170,422.79 and 66,906.02 is: 92,330.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,494.65 : 170,422.79 = 66,906.02 : x
  2. Step 2: Convert to fraction form
    123,494.65/170,422.79 = 66,906.02/x
  3. Step 3: Cross multiply
    123,494.65x = 170,422.79 × 66,906.02
  4. Step 4: Simplify right side
    123,494.65x = 11,402,311,151.65
  5. Step 5: Solve for x
    x = 11,402,311,151.65/123,494.65
  6. Step 6: Final answer
    x = 92,330.41

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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.