Home / 123,575.39-170,541.38-69,865.40

Finding the Fourth Proportional to 123,575.39, 170,541.38 and 69,865.40

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Solution

The fourth proportional to 123,575.39, 170,541.38 and 69,865.40 is: 96,418.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,575.39 : 170,541.38 = 69,865.40 : x
  2. Step 2: Convert to fraction form
    123,575.39/170,541.38 = 69,865.40/x
  3. Step 3: Cross multiply
    123,575.39x = 170,541.38 × 69,865.40
  4. Step 4: Simplify right side
    123,575.39x = 11,914,942,331.27
  5. Step 5: Solve for x
    x = 11,914,942,331.27/123,575.39
  6. Step 6: Final answer
    x = 96,418.41

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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.