Home / 123,489.41-170,425.39-69,785.58

Finding the Fourth Proportional to 123,489.41, 170,425.39 and 69,785.58

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Solution

The fourth proportional to 123,489.41, 170,425.39 and 69,785.58 is: 96,309.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,489.41 : 170,425.39 = 69,785.58 : x
  2. Step 2: Convert to fraction form
    123,489.41/170,425.39 = 69,785.58/x
  3. Step 3: Cross multiply
    123,489.41x = 170,425.39 × 69,785.58
  4. Step 4: Simplify right side
    123,489.41x = 11,893,234,041.66
  5. Step 5: Solve for x
    x = 11,893,234,041.66/123,489.41
  6. Step 6: Final answer
    x = 96,309.75

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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.