Home / 123,481.07-170,403.88-66,892.45

Finding the Fourth Proportional to 123,481.07, 170,403.88 and 66,892.45

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Solution

The fourth proportional to 123,481.07, 170,403.88 and 66,892.45 is: 92,311.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,481.07 : 170,403.88 = 66,892.45 : x
  2. Step 2: Convert to fraction form
    123,481.07/170,403.88 = 66,892.45/x
  3. Step 3: Cross multiply
    123,481.07x = 170,403.88 × 66,892.45
  4. Step 4: Simplify right side
    123,481.07x = 11,398,731,836.22
  5. Step 5: Solve for x
    x = 11,398,731,836.22/123,481.07
  6. Step 6: Final answer
    x = 92,311.57

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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.