Home / 123,399.33-170,317.39-84,690.11

Finding the Fourth Proportional to 123,399.33, 170,317.39 and 84,690.11

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Solution

The fourth proportional to 123,399.33, 170,317.39 and 84,690.11 is: 116,890.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,399.33 : 170,317.39 = 84,690.11 : x
  2. Step 2: Convert to fraction form
    123,399.33/170,317.39 = 84,690.11/x
  3. Step 3: Cross multiply
    123,399.33x = 170,317.39 × 84,690.11
  4. Step 4: Simplify right side
    123,399.33x = 14,424,198,494.01
  5. Step 5: Solve for x
    x = 14,424,198,494.01/123,399.33
  6. Step 6: Final answer
    x = 116,890.41

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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.